This is a box of Vintage '50s/'60s Gibson Sonomatic ~ 5 Light Gauge Guitar Strings No. 338 or 340. The box is originally for the 340L but it has been crossed out and 338 is written above it, So, we're not sure which it is. The Electric Spanish Guitar Strings. E or 6th Wound. Gibson Hand Made Guitar Strings. Set of 5 ~ box is missing 1. For: Guitar, Steel Guitar, Banjo, Mandolin, Ukulele, Electric Bass. Knowledge of these strings is limited so please see all included pictures for visual condition and item description. Items pictured are the exact items you will receive.