Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Scale rule
Scale rule "N" 1/120(10ft:1in) 1/240(20ft:1in). Black print on cream/off white ground.
Cardboard scale rules were cheap and inaccurate but commonplace from later 19th Century to c.1950's for use by draughtsmen, surveyors etc.
Pwnc
Diwydiant
Rhif yr Eitem
1994.65/11
Creu/Cynhyrchu
Eyre & Spottiswoode
Dyddiad:
Derbyniad
Donation, 25/7/1994
Mesuriadau
Meithder
(mm): 35
Lled
(mm): 320
Deunydd
cerdyn
Lleoliad
In store
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.