I got these guitar strings years ago from a music store that was closing down at the time, but I never used them. Three full (6 string) sets. Still in original NOS packaging. I believe they are 1970's vintage.
Gibson 240's G240 Acoustic Guitar Medium Gauge Monel Wound .012 to .056
Gibson Rock G740XL Electric Guitar Extra Light Gauge Nicklel Plated Steel .009 to .036
Gibson Brite Wires G700L Electric Guitar Light Gauge Nickle Plated Steel Wound .010 to .046
All Made in USA, Suitable for Stairway to Heaven.