Brt-273. Two tiny dots in the bottom of the reverse legend may be die flaws rather than a stop
Photo from Heritage Auctions, sale 440 (Jun 2007), lot 51337. Probably from Sotheby’s Brand sale (June 14^th 1985), part 9, lot 142

Same coin as above
Photo from Sotheby (14^th June 1985) Brand part 9, lot 142.