The nut measures
'67 ES 355 TDC STEREO, Wine Red, StereoVaritone, Two Paten Number Black Stiker, Long Lira Vibrola, Original Master Volume, EX + OHC Yellow interior code GI840
FROM MY PERSONAL COLLECTION
The top of the thinline archtop lineup was the Gibson ES-355, used by top tier players like B B King, Chuck Berry, and Alex Lifeson.The ES-355 has an ebony fingerboard with mother of pearl block position markers, a fully bound neck, headstock and body, gold plated hardware, frequently a vibrato tailpiece and on some versions a Varitone switch and stereo outputs. The Gibsin ES-355 is a relatively rare instrument simply because they were more expensive and fewer players could afford them.The neck profile is typical mid 1960's, meaning that at the nut it is fairly narrow at 1 9/16 inches.