Does anyone know of a resource for Poplarville Implement Company (PICO) disc harrows? I picked one up this past weekend and the original owners Wife said he got it new with a new Super A in 1950. It’s not an IHC brand product, it has PICO on the bearing cases. I’d like to find operator info on it. It’s in fantastic condition. I’d post pictures but keeps saying the file size is too large.