The Ross Twin Lens Reflex (TLR) is a roll-film camera from the British optical maker Ross, built in the twin-lens reflex configuration with a viewing lens above a taking lens. As a TLR, it follows the waist-level reflex format that was widely used for medium-format work in the mid-20th century.

Auction data for this Ross TLR is extremely thin: the only recorded UK saleroom result is a single hammer price of £587 at Christie's in 2003, so there is no meaningful current range or median to quote in 2026. Because that figure is a wholesale auction-hammer result rather than a retail or dealer asking price, what a Ross TLR is worth today depends heavily on condition, completeness and how often one surfaces, and a fresh sale could land well above or below that historic figure.