Judging by the way the ground glass and plate holder affix to the camera, the Bourquin dates from about 1845. It is a French-made single-box-style camera fitted with a Petzval-type portrait lens; the only means of focus is the lens’s rack and pinion. Mounted on either side of the lens are dragons, which appear to support the lens but more likely were used to hold the attention of the subject—a sort of daguerrean-era version of “watch the birdie.”