Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Tools and Equipment (hierarchy name)
5. equipment
6. [equipment by process]
7. image-making equipment
8. photographic equipment
9. photograph viewing equipment

Anotations

Scope note:

Apparatuses invented by Carlo Ponti of Venice ca. 1870, for viewing large albumen photographs on thin paper, using a large lens to create the optical illusion of depth and perspective and having candles or kerosene lamps as a source of light. The photographs themselves were translucent, often colored and pierced with pinprick holes to create dramatic visual effects with backlighting, such as that of lights in a night scene.