I know this is maybe not the right place. But, I have NEVER seen a Gold's Mattress Radiator in person, let alone EVER hear of them for sale. Posted on Facebook you will find an assortment of them. They look like they're in pretty good shape too.https://www.facebook.com/groups/archsalvage/permalink/2614517365313671/?sale_post_id=2614517365313671
Dave in Quad Cities, America
Weil-McLain 680 with Riello 2-stage burner, December 2012. Firing rate=375MBH Low, 690MBH Hi.
System = Early Dunham 2-pipe Vacuo-Vapor (inlet and outlet both at bottom of radiators) Traps are Dunham #2 rebuilt w. Barnes-Jones Cage Units, Dunham-Bush 1E, Mepco 1E, and Armstrong TS-2. All valves haveTunstall orifices sized at 8 oz.
Current connected load EDR= 1,259 sq ft, Original system EDR = 2,100 sq ft Vaporstat, 13 oz cutout, 4 oz cutin - Temp. control Tekmar 279.http://grandviewdavenport.com