Organizations, Members and References
COPAPHIL's Auctions Sales Project
- Juan Santa Maria sale of Classic Colombia. This catalog features the scholarship of Dieter Bortfeldt. At present it is the single most important source on classic Colombia.
- The Esmeralda Collection of Colombian States, March 21, 2009, Investphila S.A.
- The Esmeralda Collection of Colombia, March 21, 2009, Investphila S.A.
- Deborah Friedman Collection of Colombian Airmail, November 13-15, 2007, Cherrystone Auctions
- Eugenio Gebauer International Large-Gold Collection of SCADTA, May, 2003, Corinphila Auction 136
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Last Updated January 17, 2018