RARE KINDT COLLINS Patternmakers Core box attachment for MASTER SPINDLE SANDER

Description

This is a super rare core box grinding attachment for a Kindt Collins spindle sander. THIS ONLY FITS THE SANDER WITH THE ADJUSTABLE FENCE. Not all sanders had the fence option. This is the only one of these I've seen, I drove 800 miles to attend the auction where I bought this. that's been several years ago, now its time to find it a new home. Unfortunately I don't have the small throat plate, the guy who bought the sander got that with it. I was going to make one, its just like the includes aluminum ring that says 2 to 5, only with a smaller hole.
This is a neat accessory, they couldn't have sold many. I'm sure there are more out there somewhere, but not many.
the catalog pictures are from a catalog I borrowed, the catalog does not go with the sale.
Let me know if you have any questions other than "will you sell it cheaper"
Thanks for looking
I think Washington state is charging sales tax to all buyers.