No involvement with this sale, just popped up on my watchlist.  Thought somebody might be interested:

https://www.ebay.com/itm/126836588683

John

I'm sure not all 101's are on the registry , good that another one has risen , looks as though it's been in storage a while with bits missing and not   registered ! Nice looking bike anyway ! Best wishes to new owner/rider . Ken

I mention this in case the new 0wner (= custodian) will be one of us here. I hope the new owner will save (rescue, restore) the seat. Looks to me like a candidate for reusability if properly treated. It needs what I am doing now to an original Mesinger No. 1 and original pan with a somewhat shrunken and embrittled leather: Treat the leather with Preservation Solutions Leather Rejuvenator (2-day strengthening process), press the leather back into shape, line the leather with bonded new vegetable tanned leather, rivet a leather edging to pan, hand stitch the lined original leather to the edging (only the lining leather gets the stitches). 

OK Yes. The seat is an orphan, not off a particular 101. However, my 1931 101 has a older reproduction, which is nice, but I am planning on substituting that with this original that should be safely reusable without damaging its old leather. But I have been photodocumenting the process and will write it up for WOW or whatever. 

Friend of mine locally bought it,now there are two 101s in Wyoming.