I managed to buy something affordable for a change at a sale: It was a BeGe 1200 series pump complete with shaft and adapter base. Although it is dirty, I am beyond pleased with it. Seller’s neighbor told me it was meant as a spare, and never put to use! New lever, control tube, everything looks unused. Finally!
Question of the day is, what does this base fit on? Can someone guess by the hole pattern? I’ve been around enough to know it isn’t for a D2,4 or 6.
Perhaps an RD6? Any guesses? 
Thanks for the help. JM

I think it may be a Diesel FIFTY hole pattern..

Wombat

The RD 6 is a circle. I thing Wombat is correct, and up to the RD 7's. BUT IH TD 14 and 18 also used that bolt pattern also.

Ooh boy, thanks Ray. The neighbor told me that ranch had a TD-18 at one time!!! I will be sure to mark the base with a "Sharpie" pen, because I know I will forget eventually.
***I have another Be-Ge from another sale, I should post it as well, except I think it had an "odd" number of bolt holes, like 7 or 9 ? Nobody here has any idea what it may have come off of. Worst case scenario, I can call Associated Tractor to see if Tom knows from the casting number.
No need to wonder if I will buy an IH or a FIFTY to bolt it to, that won't be happening here. Thanks, JM

I am sure your place would look good with few TD 18's sitting around with the engine open as the heads are sent off to be welded and rebuilt. ( I need Deas to teach me emojis with this new format, to make this more fun)

Ray, you have a twisted sense of humor! My buddy Wally Chan has an entire fleet of IH, surprisingly several are still in use. The reason? Too many of his guys can’t start anything with a pony! He could provide an IH school on those head crackin’ Sonofaguns!
If you owned a diesel over gas tractor and didn’t have at least one spare head on the shelf, something was amiss.
Back from my trucking already, some more pics for you to identify for me. Thanks!