(Lot of 8) Schneider Lens Polishing Machine Replacement Bellows

I tried, but wasn't able to identify the exact part number or machine these fit.  I know they are Schneider brand from the box they came out of.  Google pulls up some very similar ones but none that match exactly.  I found several references to Modulo & Swift so likely fits something in that line.  I suspect if you are looking at these you know more about them them than I do.

Condition: New without package - Came to me loose in a box of assorted Schneider parts from a liquidation pallet auction. 

Listing price is for all 8 pieces.