17W 1x10/1x12 combo with 6973 output tubes — a Gretsch staple of the 1950s-60s.
Marks that can be entered for this maker: Serial number (plate), Transformer code.
Nothing predates 1950; 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 — gretsch