The Thornton-Pickard Ruby (rollfilm) is a British rollfilm camera produced by Thornton-Pickard Manufacturing Co., a UK maker active in the late 19th and early 20th centuries. It belongs to the early rollfilm generation of folding/box-style cameras aimed at amateur photographers of that era.

With only a single recorded UK auction hammer result — £24 in 2017 — the Ruby (rollfilm) trades at the lower end of the antique camera market at saleroom level, well before any buyer's premium is added. On that limited evidence the price today sits at around £24, though condition, completeness and originality can move individual results in either direction.