| R & J Beck Tabletop Stereoscope n.d. Stereoscope Chiswick Auctions Mon, 28th Feb 2022, Photographica; including the contents of Studio Mexico, Lot: 321 LL/118412 Mahogany construction with a walnut veneer, H: 470mm, W: 257mm, D: 305mm, with Adjustable R. & J. Beck, 31 Cornhill, London, Achromatic lens, optics.
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