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137
Scientific Instruments
1134
Negretti & Zambra compensated brass
barometer, diameter approx 6.55cm
£30 - £50
1135
Four original black telephones (including
bakerlite), circa mid 20th century,
makers include GEC & GPO (some
damage)
£20 - £40
1136
Short & Mason Mark V A non-luminous
aeroplane altimeter, no. 10998A, total
diameter 11.5cm approx.
£30 - £50
1137
Range finder cotton type MKII by E. R.
Watts & Son, London, no. 5664, with
original instructions, contained in
original case, tool length 26cm approx.
£30 - £50
1138
Sikes hydrometer set, with Dring & Fage
thermometer, contained in original case,
label to lid 'Sikes Hydrometer, c. Coaney
& Co, Dale End, Birmingham', together
with a related book 'Tables to be used
with Sikes's Hydrometer, 1935'
£20 - £30
1139
Four technical drawing sets, each in
original case, including two by Stanley
£30 - £50
1140
Large WWII leather cased two drawer
field telescope by Ottway & Co. Ltd,
Ealing London, with both leather end
pieces present, metal mount to underside
numbered '26716', total length 45.5
inches approx.
£100 - £150
1141
Swans Patent Clairvoyant Stereoscope,
circa mid to late 19th century, contained
in original burr walnut fitted box, with
'Swan's Stereoscopic Treasury' label to
lid, comes with approximately thirty
stereo cards, box size height 14.5cm,
width 23.3cm, depth 18.4cm approx.
£250 - £300