Unsure of Age, I'm thinking the 1920s. Patent applied for. Not mint, but acceptable condition for it's age. Back cover as a little writing on it.
BACHMANN OO/HO HOOK AND HORN COUPLERS (PACK OF FOUR)
Bachmann 396-002 Wagon Hook And Loop Couplings (x5 pairs) OO9 Gauge
New Peco GR-105 Close Couplers Hook and eye 12 sets for wagons
WW1 Antique Railway Station Master Watch Fob Albert Chain and T Bar 1916
Railroad Puller Hook Bar 20"