The Leullier Summum Special is a French-made folding camera produced in the early 20th century. It is a roll-film folder from a small French maker, and surfaces only occasionally on the collector market today.

Sales history for the Summum Special is thin: a single recorded UK auction hammer result of £119 in 2004, so a meaningful price range cannot be quoted in 2026. Because hammer prices reflect wholesale saleroom levels rather than dealer retail, what a Summum Special is worth today is best treated as indicative rather than fixed, and condition will heavily influence what any given example sells for.