Weight Classes for 2-Axle Trucks (1920 - 1921)
Weight class is designated by the first number in the serial, "1" being the lightest and "7" being the heaviest.
Weight Class
Chassis Weight
Load Weight
"AA" ("1" is the first number)
2,000 - 2,999 lb
7,000 lb max
"A" ("2" is the first number)
3,000 - 4,499 lb
11,000 lb max
"B" ("3" is the first number)
4,500 - 5,999 lb
15,000 lb max
"C" ("4" is the first number)
6,000 - 6,999 lb
20,000 lb max
"D" ("5" is the first number)
7,000 - 7,999 lb
Unknown
"E" ("6" is the first number)
8,000 - 9,999 lb
Unknown
"F" ("7" is the first number)
10,000+ lb
Unknown
There were two configurations of plates: (Type 1) "COMMERCIAL" at the top and "PENNA" at the bottom and height is 7", and (Type 2) "PENNA COMMERCIAL" at the bottom and height is 6". Plate widths are as follows: - 1 - 4 digits: 12" - 5 digits: 13 1/2" - 6 digits: 16"
Weight Classes for 2-Axle Trucks (1920 - 1921)
Weight class is designated by the first number in the serial, "1" being the lightest and "7" being the heaviest.
Weight Classes for 2-Axle Trucks (1922 - 1923)
Weight class is designated by the first number in the serial, "1" being the lightest and "7" being the heaviest.
Weight Classes for 2-Axle Trucks (1922 - 1923)
Weight class is designated by the first number in the serial, "1" being the lightest and "7" being the heaviest.
Weight Class
Chassis Weight
Load Weight
"AA" ("1" is the first number)
2,000 - 2,999 lb
7,000 lb max
"A" ("2" is the first number)
3,000 - 3,999 lb
11,000 lb max
"B" ("3" is the first number)
4,000 - 4,999 lb
15,000 lb max
"C" ("4" is the first number)
5,000 - 5,999 lb
18,000 lb max
"D" ("5" is the first number)
6,000 - 7,499 lb
22,000 lb max
"E" ("6" is the first number)
7,500 - 8,499 lb
25,000 lb max
"F" ("7" is the first number)
8,500+ lb
26,000 lb max
Later plates have bolt slots that are positioned closer to the edges of the plate, see #125-616 to the right
All plates measure 6" x 16". At least two plates observed with dimensions of 6" x 15" but they both appear to be cut down. See #56-188 to the right.
Manufactured in Pennsylvania prisons
Issued in pairs
Colors: gold on dark blue
From Jeff Lesher
From Joanne Subeck Crowe
(15" width, see notes) From Rob Baran
(Wide spacing on bolt slots) From Worthpoint
Not offered on this format
Not offered on this format
1924
Notes
Number Plate
Personalized Plate
Sample Plate
Observed serial ranges: R class: R1 - R99-999, then 1-R - 2011R S class: S1 - S24-832 T class: T1 - T12-954 U class: U1 - U11-793 V class: V1 - V4551 W class: W1 - W5803 Y class: Y1 - Y698 Z class: none observed
×
Weight Classes for 2-Axle Trucks (1924 - 1946)
Weight class is designated by the letter in the plate serial, "R" being the lightest and "Z" being the heaviest. "X" not used.
Weight Class
Chassis Weight
Load Weight
"R"
1 - 2,000 lb
1 - 5,000 lb
"S"
2,001 - 3,000 lb
5,001 - 7,000 lb
"T"
3,001 - 4,000 lb
7,001 - 11,000 lb
"U"
4,001 - 5,000 lb
11,001 - 15,000 lb
"V"
5,001 - 6,000 lb
15,001 - 18,000 lb
"W"
6,001 - 7,500 lb
18,001 - 22,000 lb
"Y"
7,501 - 9,000 lb
22,001 - 25,000 lb
"Z"
9,001 - 12,000 lb
25,001 - 26,000 lb
"ZZ" weight class authorized on 6/1/1929, "ZZ" plates not known until 1932.
Plates measure: - 2 - 4 characters: 6" x 10" - 5 characters: 6" x 12" - 6 characters: 6" x 15"
Manufactured in Pennsylvania prisons
Issued in pairs
Colors: dark blue on gold
From Dave Lincoln
From Worthpoint
From Clayton Moore
From Eric Tanner (4 characters but 12" width, see notes) From Eric Tanner
("W" plates sometimes used the next-widest size due to the width of the letter "W") From Worthpoint
Not offered on this format
Not offered on this format
1925
Notes
Number Plate
Personalized Plate
Sample Plate
Observed serial ranges: R class: R-1 - R99-999, then 1-R - 90-87R S class: S-1 - S25-276 T class: T-1 - T14-333 U class: U-1 - U11-835 V class: V-1 - V5-799 W class: W-1 - W6-624 Y class: Y-1 - Y6-002 Z class: Z-1 - Z844
×
Weight Classes for 2-Axle Trucks (1924 - 1946)
Weight class is designated by the letter in the plate serial, "R" being the lightest and "Z" being the heaviest. "X" not used.
Weight Class
Chassis Weight
Load Weight
"R"
1 - 2,000 lb
1 - 5,000 lb
"S"
2,001 - 3,000 lb
5,001 - 7,000 lb
"T"
3,001 - 4,000 lb
7,001 - 11,000 lb
"U"
4,001 - 5,000 lb
11,001 - 15,000 lb
"V"
5,001 - 6,000 lb
15,001 - 18,000 lb
"W"
6,001 - 7,500 lb
18,001 - 22,000 lb
"Y"
7,501 - 9,000 lb
22,001 - 25,000 lb
"Z"
9,001 - 12,000 lb
25,001 - 26,000 lb
"ZZ" weight class authorized on 6/1/1929, "ZZ" plates not known until 1932.
Plates measure: - 2 - 3 characters: 6" x 10" - 4 characters: 6" x 12" - 5 characters without hyphen: 6" x 12" - 5 characters with hyphen: 6" x 13" - 6 characters: 6" x 15"
Manufactured in Pennsylvania prisons
Issued in pairs
Colors: gold on dark blue
From Jeff Lesher
From Jeff Lesher
From Worthpoint
From Jeff Lesher
From Bill Krellner
From Bob Connison
From Rob Baran ("W" plates sometimes used the next-widest size due to the width of the letter "W") From Shane Rudy
Not offered on this format
Not offered on this format
1926
Notes
Number Plate
Personalized Plate
Sample Plate
Observed serial ranges: R class: R-1 - R99-999, then 1-R - 134-30R S class: S-1 - S31-210 T class: T-1 - T15-474 U class: U-1 - U4-731 V class: V-1 - V10-463 W class: W-1 - W7-410 Y class: Y-1 - Y-202 Z class: none observed
×
Weight Classes for 2-Axle Trucks (1924 - 1946)
Weight class is designated by the letter in the plate serial, "R" being the lightest and "Z" being the heaviest. "X" not used.
Weight Class
Chassis Weight
Load Weight
"R"
1 - 2,000 lb
1 - 5,000 lb
"S"
2,001 - 3,000 lb
5,001 - 7,000 lb
"T"
3,001 - 4,000 lb
7,001 - 11,000 lb
"U"
4,001 - 5,000 lb
11,001 - 15,000 lb
"V"
5,001 - 6,000 lb
15,001 - 18,000 lb
"W"
6,001 - 7,500 lb
18,001 - 22,000 lb
"Y"
7,501 - 9,000 lb
22,001 - 25,000 lb
"Z"
9,001 - 12,000 lb
25,001 - 26,000 lb
"ZZ" weight class authorized on 6/1/1929, "ZZ" plates not known until 1932.
Plates measure: - 2 - 3 characters: 6" x 10" - 4 characters: 6" x 12" - 5 characters: 6" x 13" - 6 characters: 6" x 15"
Manufactured in Pennsylvania prisons
Issued in pairs
Colors: dark blue on gold
From Worthpoint
From Worthpoint
From Peter Cohen
From Pl8source.com
From Eric Tanner ("W" plates sometimes used the next-widest size due to the width of the letter "W") From Eric Tanner
Not offered on this format
Not offered on this format
1927
Notes
Number Plate
Personalized Plate
Sample Plate
Observed serial ranges: R class: R-1 - R99-999, then 1-R - 72-45R S class: S-1 - S42-129 T class: T-1 - T16-704 U class: U-1 - U12-612 V class: V-1 - V13-096 W class: W-1 - W7-932 Y class: Y-1 - Y5-565 Z class: Z-1 - Z2-113
×
Weight Classes for 2-Axle Trucks (1924 - 1946)
Weight class is designated by the letter in the plate serial, "R" being the lightest and "Z" being the heaviest. "X" not used.
Weight Class
Chassis Weight
Load Weight
"R"
1 - 2,000 lb
1 - 5,000 lb
"S"
2,001 - 3,000 lb
5,001 - 7,000 lb
"T"
3,001 - 4,000 lb
7,001 - 11,000 lb
"U"
4,001 - 5,000 lb
11,001 - 15,000 lb
"V"
5,001 - 6,000 lb
15,001 - 18,000 lb
"W"
6,001 - 7,500 lb
18,001 - 22,000 lb
"Y"
7,501 - 9,000 lb
22,001 - 25,000 lb
"Z"
9,001 - 12,000 lb
25,001 - 26,000 lb
"ZZ" weight class authorized on 6/1/1929, "ZZ" plates not known until 1932.
Plates measure: - 2 - 4 characters: 6" x 10" - 5 characters: 6" x 13" - 6 characters: 6" x 15"
Manufactured in Pennsylvania prisons
Issued in pairs
Colors: gold on dark blue
From Drewski
From Jeff Lesher
From eBay (jjijil6)
From Tim Gierschick
From Eric Tanner
From eBay (egostarlynx)
From Rob Baran ("W" plates sometimes used the next-widest size due to the width of the letter "W") From Eric Tanner
Not offered on this format
Not offered on this format
1928
Notes
Number Plate
Personalized Plate
Sample Plate
Observed serial ranges: R class: R-1 - R99-999, then 1-R - 11-82R S class: S-1 - S53-745 T class: T-1 - T20-813 U class: U-1 - U6-472 V class: V-1 - V12-427 W class: W-1 - W6-041 Y class: Y-1 - Y1-938 Z class: Z-1 - Z3-149
×
Weight Classes for 2-Axle Trucks (1924 - 1946)
Weight class is designated by the letter in the plate serial, "R" being the lightest and "Z" being the heaviest. "X" not used.
Weight Class
Chassis Weight
Load Weight
"R"
1 - 2,000 lb
1 - 5,000 lb
"S"
2,001 - 3,000 lb
5,001 - 7,000 lb
"T"
3,001 - 4,000 lb
7,001 - 11,000 lb
"U"
4,001 - 5,000 lb
11,001 - 15,000 lb
"V"
5,001 - 6,000 lb
15,001 - 18,000 lb
"W"
6,001 - 7,500 lb
18,001 - 22,000 lb
"Y"
7,501 - 9,000 lb
22,001 - 25,000 lb
"Z"
9,001 - 12,000 lb
25,001 - 26,000 lb
"ZZ" weight class authorized on 6/1/1929, "ZZ" plates not known until 1932.
Plates measure: - 2 - 4 characters: 6" x 10" - 5 characters: 6" x 13" - 6 characters: 6" x 15"
Manufactured in Pennsylvania prisons
Issued in pairs
Colors: dark blue on gold
From Jeff Hinkle
From Worthpoint
From Worthpoint
From Rob Baran
From Bill Krellner ("W" plates sometimes used the next-widest size due to the width of the letter "W") From Bill Krellner
(Historic picture of a 1928 "Z" plate in use) From Mike Alfonse
Not offered on this format
Not offered on this format
TEST PLATE
This plate is believed to be a test or prototype plate.
From Jeff Lesher
1929
Notes
Number Plate
Personalized Plate
Sample Plate
Observed serial ranges: R class: R-1 - R99-285 S class: S-1 - S69-961 T class: T-1 - T22-861 U class: U-1 - U12-649 V class: V-1 - V11-326 W class: W-1 - W8-646 Y class: none observed Z class: Z-1 - Z1-073
×
Weight Classes for 2-Axle Trucks (1924 - 1946)
Weight class is designated by the letter in the plate serial, "R" being the lightest and "Z" being the heaviest. "X" not used.
Weight Class
Chassis Weight
Load Weight
"R"
1 - 2,000 lb
1 - 5,000 lb
"S"
2,001 - 3,000 lb
5,001 - 7,000 lb
"T"
3,001 - 4,000 lb
7,001 - 11,000 lb
"U"
4,001 - 5,000 lb
11,001 - 15,000 lb
"V"
5,001 - 6,000 lb
15,001 - 18,000 lb
"W"
6,001 - 7,500 lb
18,001 - 22,000 lb
"Y"
7,501 - 9,000 lb
22,001 - 25,000 lb
"Z"
9,001 - 12,000 lb
25,001 - 26,000 lb
"ZZ" weight class authorized on 6/1/1929, "ZZ" plates not known until 1932.
Plates measure: - 2 - 4 characters: 6" x 10" - 5 characters: 6" x 13" - 6 characters: 6" x 15"
Manufactured in Pennsylvania prisons
Issued in pairs
Colors: gold on dark blue
From Worthpoint
From Peter Cohen
From Eric Tanner ("W" plates sometimes used the next-widest size due to the width of the letter "W") From Tim Gierschick