Lionel's older instruction sheets would often have the last 2 digits of the year they were produced at the end of the product part number (see close-up photo) .
1960 Lionel Alco Diesel Locomotive INSTRUCTION SHEET Model Railroad Toy Train
LIONEL ,, 3330 3830 6830 SUBMARINE CARS , INSTRUCTION SHEET , COPY
Lionel Postwar Form 926-25 Lubricant Instruction Sheet
Lionel No. 6470 Exploding Box Car Original Instruction Manual Sheet, Vintage
Lionel INSTRUCTION SHEET, Original, Install No. 110 and 111 Trestle Set
Lionel Instruction Sheet for Connecting Lionel #153C Contactor & 167C & 022
