I have a Superior 1 ton truck. It has 124" wheel base. The body tag is: 1R or TR 1681. I think it is between 1920 & 1927. The body is a Martin-Perry.
The engine is an overhead valve exposed with push rods and lifters exposed. The head casting numbers are: P 4-1920, 407-7. The block casting numbers are H4 P-9, 967, 422. Is there any other details that would help determining the year?

Hi, Do you see any combination of numbers and letters similar to this? B 13 1920 on both the head and block?

Hi Ray,
Not sure, will go look now. Thanks.

Hi Ray,
See Oracle comments in 1912-28 forum. I do not have a combination like the B numbers on the head & block[s][/s]. I think I may have a 1920 head and a 1922 block as Oracle states. If I can figure out how to attach a couple photos I will. no luck. If you know how to attach I would appreciate steps.