For sale August/ September 2016 at Sotheby’s auction at Auburn, IN (did not sell):

Photos accompanying the auction listing:

Listed for sale in Bedford Heights, Ohio for $39,500 in late 2016 (photos are the same as the above post).

Note by DC from 2015:

Correspondence from Allen Heisel dated January 8, 1973:

Correspondence from Allen Heisel dated December 29, 1972: