1929. British Industries Fair catalogue.
of 6, 8, 10 Canal Road, Kingsland Road, London, N1. Telephone: Clerkenwell 9437. Cables: "Emzangrav, Kinland, London"
- 1929 British Industries Fair Advert for 'Numbering and Dating Machines of Every Description' in Metal. (Stationery Section - Stand No. PP.6) 
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