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History of the manufacturer  

Harding, Holland & Fry, London

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Name: Harding, Holland & Fry, London    (GB)  
OTB (O.T.B.)
Abbreviation: harding

Harding, Holland & Fry Ltd., 27 Garlick Hill, London EC4; "O.T.B.";


This manufacturer was suggested by Konrad Birkner † 12.08.2014.

Some models:
Country Year Name 1st Tube Notes
GB  23 OTB Type A   turned mahogany lidded box,5"dia.; BBC/PMG stamp, GPO No.745; 
GB  23 OTB Type B   Circular turned oak "powder-box" 5"dia., 2.5"high, like Type A, but with sockets instead o...