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pebble tester
MANUFACTURING AND DISPENSING EQUIPMENT
pebble tester; polariscope
Dixon Salt, John
Europe: United Kingdom, England, West Sussex, Worthing
2014
plastic; polarised film
overall: 52 mm x 168 mm x 39 mm
2014.312
MANUFACTURING AND DISPENSING EQUIPMENT
pebble tester; polariscope
Dixon Salt, John
Europe: United Kingdom, England, West Sussex, Worthing
2014
plastic; polarised film
overall: 52 mm x 168 mm x 39 mm
Home-made pebble tester consisting of two square pieces of dark grey polarised film, attached by screws on either end of a flexible black plastic tweezer-style handle.
2014.312
Gift of Mr John Dixon Salt, FCOptom, 2014