Jal Cooper (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Jal Cooper" in English language version.

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The Times of India Directory and Year Book Including Who's who. Bennett, Coleman & Company. 1969. COOPER, Jal Manekji, F.R.G.S., Member, British Philatelic Assoc. Ltd.; Hon. Socv.. The Empire of India Philatelic Socy. b. March 29. 1905.

filatelia.fi

Cooper's authentication mark. Filatelia.fi. Retrieved on 29 November 2018.

web.archive.org

Philately in Transition in India. Stamps of India Collectors Companion. Part 2, Issue # 59 – 4 April 2002
E. A. Smythies (1950) "A Classic Stamp Error". The American Philatelist, pp. 59, 60.