Help with identifying some dies!

[Utah Shooter]

So I am going to let the pictures pretty much do the talking. I was curious if anyone has seen anything like these. There is the 1 die body and it seems that there are interchangable parts for sizing and seating.

100513
100515
100516

[mdi]

Are there any markings, sizes or manufacturer's names/logos on the die?

[dbosman]

Based only on the springs being cut from longer stock, I'd say this was someone's custom work.

[Utah Shooter]

Making says BSA UNITED STATES PATENT. I believe I will check when I get home.

[Pressman]

Looks like Micro Precision. I would need to get out of bed and go down stairs to be certain. They made a universal die that served as seater and sizer in the 70s.
Ken

[Utah Shooter]

That is pretty cool. Let me know if you do not mind!