British Guiana 4 cents blue - SG 26 ex-Ferrari collection - initials E.D.W.
<a href="//commons.wikimedia.org/wiki/User:Jacquesverlaeken" title="User:Jacquesverlaeken">Jacquesverlaeken</a>
2012-10-19 14:22:05
Jakubek Auction 5/1986, Hamburg