#45 - Vintage photographic studio cards.
Photographic studios in the late 19th and early 20th century would hand these out as a kind of business card to advertise their work and show clients their proofs.
They're a thick board with rounded corners and often have gold, printed edges. Intricately designed studio details are printed on the reverse and a photographic image (usually a very serious portrait) is glued to the front - a contrast I just love. Some cards also had foil blocking and debossing on the fronts to embellish the studio name.
If you like these, check out our other reference box items here