The Houghton Ensign Multex No.0 is a British-made compact folding camera fitted here with a Ross Xpres 53mm f/1.9 lens. It is a small-format rollfilm camera from the pre-war era, positioned at the higher end of Houghton's Ensign range when introduced.

Auction data for this specific Multex No.0 with the Ross Xpres f/1.9 configuration is extremely thin: the only recorded UK auction hammer result is £705 at Christie's in 2001, so any sense of what one is worth today rests on a single saleroom data point rather than a established range. Because hammer prices reflect wholesale levels achieved in the saleroom (excluding commission), retail asking prices from specialist dealers will typically sit higher. Buyers should treat the £705 figure as indicative only, with current value heavily dependent on lens condition and completeness.