1941-1944 California license plate.
1941 A 1941 dated base plate was issued to be validated annually with tabs through 1943 and a windshield sticker in 1944...The History.
1941; 1941 California plate issued, dated "19 CALIFORNIA 41" in yellow on black like the one pictured..
1942, 1941 California plates were issued a long thin tab covering the top of the plate with a "19 CALIFORNIA 42" tab. New registrants were issued a plate like this but the plate was issued with a plate with the tab painted in instead of a tab issued.
1943; California plates dated 1941 and the dated 1942 plates with the paint on tab were issued a "V" (for victory) tab to be added on top of the tab or painted tab 1942 base plate.
1944; A windshield sticker was issued without the State issuing a tab to revalidate the license plate until the 1945 license plate were issued. See the 1944 windshield sticker in my photo stream.