£240
A THERMO-BAROGRAPH BY NEGRETTI & ZAMBRA, LONDON, CIRCA 1960
signed on lacquered brass plate as per title, dual arms inscribed Thermograph / Barograph, recording drum with clockwork motor, mounted within light oak case with chart drawer and bevelled glass cover -- 14½in. (37cm.) diameter; together with a 6½in. radius sextant by E. R. Watts & Son, London, No. 172, with green painted brass frame, contained in box with accessories -- 10½in. (27cm.)
(2)
Barograph clockwork motor running well, barograph movement defective, both ink pans corroded.
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