This was pretty poorly done though IMO and meant that some serial numbers were reused so a certain serial number could be from a guitar from different years. The "single ring" refers to the single ring around the plastic button. Not sure why these numbers were used, but at least it was uniform! Humbucking pickup. Gibson Serial Numbers, Starting inGibson changed to Indian rosewood. These models have their own serial number system, and are not covered in this document.
This material can deteriote with time the tortoise colored pickguards especially exhibit this trait.
Gibson Serial Numbers
War-time gold script "only a Gibson is Good Enough" logo on a Southern Jumbo, as used from to Note white label numbers A to A were not used. All models, stamped in back top of headstock. Also to early P. Some of these include:. Notice the volute. Again, this stamp is seen on the back of the peghead.