Renowned philatelic auctioneers and publishers MacDonnell Whyte Ltd, are well-known in stamp and postal history circles. Established in 1966, MacDonnell Whyte Ltd are members of IPTA (Ireland), PTS (UK), APHV (Germany), and APS (USA). In addition, David MacDonnell is the resident member for Ireland, of the AIEP (Association of International Philatelic Experts).
