English, early 20th century, in lacquered brass and black oxidised brass, silver scale divided to half a degree, reading to one arc-minute by vernier, with red and blue filters and peep sight sun filter, case 7.9cm across
Sold for £81
Result plus buyers premium
English, early 20th century, in lacquered brass and black oxidised brass, silver scale divided to half a degree, reading to one arc-minute by vernier, with red and blue filters and peep sight sun filter, case 7.9cm across
Auction: The Collectors Sale, 5th May, 2022