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Details
A good late 19th/early 20th-Century English anenometer,
signed on the dial CASELLA LONDON No 3969 -- 10.7cm. (4¼in.) diameter
See Colour Illustration
The main dial is graduated 0-99 around its circumference, and labelled VELOCITY IN FEET. It incorporates three subsidiary dials for 100s, 1000s and 10,000s, a brass rod for ZERO-SETTING PAT. No 3729 , and a switch for clamping the blued-steel needles. The glazed central dial and eight tin vanes are housed in a black-painted frame with a suspension loop. The stiff leather and card case is lined with blue velvet and applied with a label on the inside with a correction chart bearing the number for this instrument 12127. The outside of the case is stamped in small print MADE IN ENGLAND.
signed on the dial CASELLA LONDON N
See Colour Illustration
The main dial is graduated 0-99 around its circumference, and labelled VELOCITY IN FEET. It incorporates three subsidiary dials for 100s, 1000s and 10,000s, a brass rod for ZERO-SETTING PAT. N
Special notice
No VAT will be charged on the hammer price, but VAT at 17.5% will be added to the buyer's premium which is invoiced on a VAT inclusive basis
This lot is subject to Collection and Storage charges