Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Scale rule
Scale rule "A" 1:1, (12":1') ½ (6in:1ft) full size. Black print on rich cream 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
1994.65/1
Creu/Cynhyrchu
Eyre & Spottiswoode (Bible Warehouse) Ltd.
Dyddiad:
Derbyniad
Donation, 25/7/1994
Mesuriadau
Meithder
(mm): 30
Lled
(mm): 320
Deunydd
cerdyn
Lleoliad
In store
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.