Vtg Kentucky Central Combo Lock Box Blue Metal Life Insurance Co Lexington as is, locked - combination unknown. Durham Mfg. Durham, Conn. embossed on underside base. Measures approx. 11 3/8" L x 5 1/4" W x 3 1/2"H.  Feels empty when shaken, as acquired ~ Aged loved enjoyed. Start a collection or perhaps addition to existing one, Insurance Collector/Advertising Nostalgia, Theatre or Stage Prop idea or other Creative usage!