What are the correct years or series that these two similar but different gauge clusters were used?

Answering this correctly will guarantee you a reserved place in the anals of (retentive minutia) Stovebolt lore.
Attachments
F4C32FFA-91C5-4E2E-931B-F82994810F5B.jpeg (316.24 KB, 303 downloads)

Last edited by tom moore; 04/23/2023 2:46 PM.
1946 GMC Project
"Back-in-the-day Restore"
Read the story in the DITY Gallery