On a hunch I measured a 4:75 / 5:00 x 19 on one of my rims and its the tire outside diameter 29 inch.
Mine should be for 1932 Durant only 5:25 x 19. 1931 and prior is the 4:75 x 19. The Queensway Tire Co in Simco has all the old books telling them just what tire size is year by year for our and other makes. Gord's is 5:25 x 18 on the 32 E 670 Frontenac. My 5:25 x 19 were such a mess from age I put the smaller ones on temporarily until I can find the large proper size. Makes the car look Gestapo with bigger ha ha
Where Are You From? Ottawa Ont
Do You own a car built by Durant? Dominion built 1932 614 Sedan