Signature |
Maker |
Instruments |
Comments |
Location |
References |
P.B. 4 |
Germany, c.1790, MIM |
Diptych Sundials, wood and paper = UTR, ADL-W194, WHI, Koller May 1972, Christie-G 11/20/79. |
the initials are found in the compass boxes. |
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de Wijk; Bryden 16; ADL; RSW. |
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