The two-tone 14W Les Paul combo (1955-1960); the dating case study in this run shows why the serial number is useless and a replaced pot can add a decade.
Marks that can be entered for this maker: Transformer code, Speaker code, Pot code.
Nothing predates 1955; components only push the date later.
Sold-price aggregates are not collected yet, so the archive gives no figure — condition, originality of the transformers and a documented recap move this model more than any list price.
Evidence: Blue Book of Guitar Values — gibson