Martijn Snoek
  
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Hugo Brieffies
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Cathelijne de Groot
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Gerard Vink
Registered valuer Federatie TMV
Specializations: North and South America, China, Netherlands and former colonies, dot cancellations.
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Henk Vleeming
A.I.E.P. Expert for Netherlands and colonies (stamps, cancellations and Postal History), Indonesia till 1965.
Specialization: Postal History.
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Martin Bronkhorst
Specialisations: England and colonies, Netherlands and colonies, cancellations and varieties.
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Peter Buis
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Bart Willekens FRPSL
Fellow of the Royal Society London, collects Belgium Congo
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