Circa 1915-1920 - 3239 One Gauge locomotive with 'F.A.O.S.' markings on each end.

Circa 1919 - To the best of our knowledge this was the only 0 Gauge set made up specially for F.A.O. Schwarz by Ives. It came with an 1118 engine, a late rubber stamped 8 wheel No. 25 tender and three lithographed 129,130 series passenger cars. Only the locomotive was marked "F.A.O.S.". We don't know how the set box was marked as one has never surfaced. 

F.A.O.S Locomotive

No. 25 Tender

No. 129 Saratoga