The Taylor, Taylor & Hobson 6 Inch f/2.8 Cooke Copying Lens is a large-format copying optic with a 152mm focal length and a fast f/2.8 maximum aperture, made by the historic Leicester optical firm best known for its Cooke-branded designs. Lenses of this type were produced for technical reproduction work — copying documents, artwork and process photography — rather than general pictorial use, and they are typically supplied as bare cells or in industrial barrels rather than standard camera mounts.

Sales evidence for this specific Cooke copying lens is thin: the only recorded UK auction hammer result we have is £60 in November 2025, which sets the only firm wholesale data point in today's market. With a single saleroom result, there is no meaningful range or median to quote, and any sense of what a clean copy is worth at auction will move significantly with condition, completeness and whether the lens is mounted in a usable barrel. Buyers researching what one sells for should treat this figure as indicative only and watch further auction listings before committing.