The Van Neck Prototype SLR is a single-lens reflex camera that appears only as a one-off prototype, rather than a production model. With no series run or commercial release on record, it sits in the territory of collector curios rather than working user cameras.

Auction data for the Van Neck Prototype SLR is extremely thin: a single UK hammer result of £329 from December 2002 is the only reference point available, and that figure reflects a wholesale saleroom price rather than a retail asking price. With no later sales to compare against, it is not possible to state what one is worth today with any confidence, and buyers should treat that historic price purely as a data point rather than a guide to current value.