The former U.S. territory of the Canal Zone first issued license plates in 1910, and this continued until the Canal Zone was returned to Panama in 1979.[1] A single plate was issued for all years. The country of Panama also issued Canal Zone license plates for United States citizens that lived in Panama but worked in the Canal Zone, but these plates have the country name "Panama" clearly showing on them.[2] Since reciprocity for license plates between the Canal Zone and Panama did not exist until 1950, old photos often show local vehicles with two different license plates mounted on the vehicle.[3]
Passenger baseplates
1910 to 1955
Image
Date
Design
Slogan
Serial format
Serials issued
Notes
123
1910
White on dark blue
None
123
1 to ?
Plates started at number one and continued sequentially.
123
1911
Dark blue on white
None
123
Plate numbers are believed to have continued sequentially from where they left off in 1910. The 1910 plate numbers issued were not reused. This scheme continued through 1916.
123
1912
White on dark blue
None
123
123
1913
Dark blue on white
None
123
123
1914
White on dark blue
None
123
123
1915
Dark blue on white
None
123
1234
1916
White on dark blue
None
123 and 1234
Some four digit plates are known, but the numbers are too high to fit into the sequence of plates issued.
1234
1917
Black on yellow
None
1234
All previous plates were cancelled and renumbering started at number one.
1234
1918
Black on white
None
1234
1234
1919
White on dark blue
None
1234
1920
Black on dark yellow
None
1234
1921
Black on gray-green
None
1234
1234
1922
White on black
None
1234
1234
1923
Black on yellow
None
1234
1234
1924
Yellow on dark blue
None
1234
1234
1925
White on dark blue
None
1234
1234
1926
Black on yellow
None
1234
1234
1927
Red on white
None
1234
First year that "Canal Zone" is spelled out.
1234
1928
Black on light orange
None
1234
1234
1929
Red on white
None
1234
1234
1930
Black on yellow
None
1234
1234
1931
Red on white
None
1234
1234
1932
Black on yellow
None
1234
1234
1933
Red on white
None
1234
1234
1934
White on medium blue
None
1234
1234
1935
Medium blue on yellow
None
1234
1234
1936
Red on white
None
1234
12345
1937
White on dark green
None
12345
12345
1938
White on red
None
12345
12345
1939
Black on yellow
None
12345
1940
Yellow on dark green
None
12345
12345
1941
Black on yellow
None
12345
1942-44
White on dark blue
None
12345
1942: Base plate only
1943: Round black on yellow validation tab with "43" at top and serial number below
1944: Rectangular black on red validation tab with serial number followed by "44"
1979: Rectangular black on red validation sticker with small "Canal Zone" at top, "79" in center, and small "No" and serial number at bottom
Non-passenger plates
Image
Type
Design
Serial format
Serials issued
Notes
1971 Motorcycle
Yellow on black with border line
M-123
1979 Trailer
Green on white with border line
T-123
Sticker on 1978 base
Miniature automobile license plate
Miniature automobile license plates were included in boxes of Wheaties cereal in 1953, and they are oftentimes called bicycle license plates. Included in one of the sets issued by General Mills was a Canal Zone license plate. Other plates in this set included the following locations: Alaska, District of Columbia, Dominican Republic, Guam, Hawaii, Italy-Military, Philippines, Virgin Islands, and the Maharajah plate with a golden double headed eagle.[6] Note that all of the license plates issued for each state, province, territory, or country had the same serial number (Canal Zone plates all have the W3966 serial number).