Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
The Naylor 'Spiralarm' Type 'M' (instruction booklet)
Full title - Working and Maintenance Instructions. The Naylor 'Spiralarm' Type 'M'. Ministry of Fuel and Power Firedamp Detector Approval No.6 26/11/49. Seven booklet, stapled.
Pwnc
Diwydiant
Rhif yr Eitem
2017.38/474
Creu/Cynhyrchu
J.H. Naylor Ltd.
Dyddiad: 20th century
Derbyniad
Old stock, 27/2/2017
Mesuriadau
Meithder
(mm): 220
Lled
(mm): 143
Deunydd
papur
metel
Lleoliad
In store
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