NOS Triple 3-Pin Steel Chainring Set: 116mm Continental - 52t / 47t / 40t - Dome Bolts - - 5 Bolt Outer Ring
Vintage 1940's or 1950's steel chainwheel set. The inner two rings are 3 bolt, 116mm continental size. The outer ring is a 5 bolt that attaches to separate bolt holes on the middle ring. The outer ring is attached with really nice original chainring bolts. No markings, unknown brand.
New old stock, with original yellow paper holding the sets together. Some light shop wear, but mostly it looks like dried grease that would clean up easily (I didn't try). No damage