The Certo Dollina I is a folding camera for 35mm film, produced by the Dresden maker Certo from the mid-1930s. It was a compact, scale-focus folder positioned at the budget end of the pre-war 35mm market.

Sales data for the Dollina I is thin in 2026, with a recent UK auction hammer result of £38 providing the only firm reference point. At saleroom level — wholesale prices before commission — clean working examples tend to sell in a similar low double-digit range today, and what a Dollina I is worth is heavily tied to bellows condition and shutter health.