![Image](http://imagizer.imageshack.us/v2/800x600q90/924/dzXzhw.jpg)
![Image](http://imagizer.imageshack.us/v2/800x600q90/922/BtoVjy.jpg)
British sponsor mark J.M in a lozenge for Joseph Morpurgo who was noted as a foreign (Dutch) dealer and registered his mark on 16 September 1892. Reference J.D. Culme's two-volume work entitled The directory of gold & silversmiths jewellers & allied traders 1838-1914 (Woodbridge, Antique Collectors' Club, 1987, Vol. II) gratiude Library of the Goldsmiths.Co.UK. The Dutch based company was founded by Joseph M. Morpurgo in 1869
London import marks for 1892.
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http://www.925-1000.com/forum/viewtopic.php?f=5&t=43930
Peter