Imperial

Region: Germany    Period: 1890–1930    Tag: N. P. G.
Rebranded Imperial, N.P.G., Germany
Rebranded Imperial, N.P.G., Germany
© Stereoscopy History

The Imperial is a small stereoscope designed for paper miniature stereoviews in the 3 x 7 format. This compact and colourful viewer was distributed by N.P.G. under the Imperial name, but rebranded versions were also produced on a large scale for use by companies as promotional items.

Related items: 3 x 7 format  N. P. G.

Specifications:

Classification:
Hand-held / Single-view / Folding / Pocket
Introduction:
1903
Designer:
N. P. G.
Maker:
N. P. G.
Construction:
Metal
System:
Open
Medium:
Paper
Format:
3 x 7
Lens:
Convex
Lens focus:
No
Inter-ocular adjustment:
No

Patents and registrations:

Number: 720849
Stereoscope
Filing: 17-02-1903, Applicant(s): Arthur Schwarz. via: worldwide.espacenet.com

Rebranded Imperial, N.P.G., Germany
Rebranded Imperial, N.P.G., Germany
© Stereoscopy History
Published: 18-05-2026    Last modified: 17-05-2026