The Jeanneret Monobloc is an early stereo camera, designed to record paired images for stereoscopic viewing. It is a collectible piece aimed today at specialist stereo and antique camera collectors rather than working photographers.

Public auction data for the Monobloc is extremely thin: the only recorded UK saleroom result available is a single 2001 Christie's hammer of £70, so a meaningful current price band cannot be drawn. Buyers asking what a Jeanneret Monobloc is worth in 2026 should treat that figure as a historical reference point only and watch specialist stereo-camera sales for fresh comparables before deciding what the camera sells for today.