Gibson les paul custom dating
Although absent on LP Customs (for obvious reasons), LP Deluxes have a block of wood crudely glued in to fill this gap.The block allows the mounting bar for the mini-humbuckers to be installed. This block is occasionally glued in with care and can appear to be a long tenon.      Note about this image: This is a photoshop hack job of an Historic Series Gibson that was cut in half.It is very difficult to see, but can be observed in the neck pickup cavities of Customs and Standards alike. No one has a good explanation for it as it would add time, labor, and $$$ to assembling an instrument.One of the first to have it, here is an image of a 537xxx guitar with a small headstock, dotted "i", and a 69-style cavity: IMAGE OF LAYER       These guitars exclusively have a long tenon neck joint.NOTE: A very small number of Middle Series guitars shipped with a long tenon body and a transitional tenon neck.
They are covered in the "Current Reissues" section.
In 1994 only, the Nashville Gibson factory numbered all instruments with a 94xxxxxx style number. This funky formatting keys the YYYY number to a ranking of the model according to the years of centenial (1894 corresponds to #1, 1994 corresponds to #101, etc).
The final 6 digits ranked the instruments over the whole year`s production. The MM was the month of the model within the series, ranging from 1 to 14 (but only 12 models were actually produced, plus 2 prototypes). The LP Classic have a 1950s style inked serial number with the first digit decoding to the last digit of the year.
It is just for educational purposes and not precisely similar to the actual neck joints.       The most sought after Goldtops of this era will have a 50's headstock design.
Around serial number 53920x-53924x, Goldtops jumped to a larger sized variant. Customs have had the larger headstock since the 50's to accommodate the multi-ply binding they exhibit.