Find month and year of a Pierce?

[CatBird]

I have the body number and the engine number. How can I found the build date? I have found the series, not a specific date.

[Grimy]

Bill, if you'll PM me the numbers you have, I'll give you an educated guess.  As you may know, "build sheets" did not survive the liquidation of the Company, but the P-A Society has a decent database.  Also, engine numbers, serial (chassis) numbers, and body numbers post-1920 do not match sequentially.