The 126 series replaced the 125 with a redesigned sub-chassis and a heavier platter; Mk II and Mk III revisions followed.
Belt-drive/automatic turntable: the belt and the automatic trip mechanism are the usual faults, and a missing dust cover or cartridge sled shows up in the price. Verify 50/60 Hz mains pulley.
Marks that can be entered for this maker: Serial number, Model / catalogue number, British capacitor code (Hunts, Mullard), Japanese capacitor code (Nichicon, Chemi-Con, ELNA), EIA component code, Version & era marker.
The introduction year is not documented, so the model narrows nothing.
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: Sound Fountain — Thorens resources