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1920 - 1929



1920

Notes Number Plate Personalized Plate Sample Plate
Observed serial range: No plates known to collectors

All plates measure 6" x 16" (unconfirmed)
Not offered on this format

1921

Notes Number Plate Personalized Plate Sample Plate
Observed serial range: T270 - T800

All plates measure 6" x 16"

From John Willard
Not offered on this format

1922

Notes Number Plate Personalized Plate Sample Plate
Observed serial range: T 20 - T 588

All plates measure 6" x 16"

From ALPCA Archives


(Repainted)
From Bill Krellner
Not offered on this format

1923

Notes Number Plate Personalized Plate Sample Plate
Observed serial range: No plates known to collectors

All plates measure 6" x 16" (unconfirmed)
Not offered on this format

1924

Notes Number Plate Personalized Plate Sample Plate
Observed serial range: TT 142 - TT1-875

Plates measure:
- TT + 1 or 2 numbers: 6" x 10" (unconfirmed)
- TT + 3 numbers: 6" x 12"
- TT + 4 numbers: 6" x 15"

(6" x 10")


(6" x 12")
From ALPCA Archives


(6" x 15")
From Bill Krellner
Not offered on this format

1925

Notes Number Plate Personalized Plate Sample Plate
Observed serial range: TT 511 - TT2-347

Plates measure:
- TT + 1 or 2 numbers: 6" x 10" (unconfirmed)
- TT + 3 numbers: 6" x 12"
- TT + 4 numbers: 6" x 15"

(6" x 10")


(6" x 12")
From Bill Krellner


(6" x 15")
From Clayton Moore
Not offered on this format

1926

Notes Number Plate Personalized Plate Sample Plate
Format 1 (Full-size "TT")

Observed serial range: TT1-338 - TT2-511

Plates measure: 6" x 15"
No numbers under 1000 known, it is unknown if other sizes exist for this year

From Eric Tanner
Not offered on this format
Format 2 (Smaller "TT")

Observed serial range: TT2-837 - TT3-042

Plates measure: 6" x 15"

This is the first year that Pennsylvania plates made letters smaller than numbers, which is still in effect today!

From Bill Krellner
Not offered on this format

1927

Notes Number Plate Personalized Plate Sample Plate
Observed serial range: TT3-454 - TT3-547

Plates measure: 6" x 15"
No numbers under 1000 known, it is unknown if other sizes exist for this year

From Bill Krellner
Not offered on this format

1928

Notes Number Plate Personalized Plate Sample Plate
Observed serial range: TT-63 - TT3-186

Plates measure:
TT + 1-2 numbers: 6" x 13"
TT + 3-4 numbers: 6" x 15"

(6" x 13")
From Clayton Moore


(6" x 15")
From Bill Krellner


(6" x 15")
From Clayton Moore
Not offered on this format

1929

Notes Number Plate Personalized Plate Sample Plate
Observed serial range: TT1-315 - TT4-820

Plates measure: 6" x 15"

From Clayton Moore
Not offered on this format