J.C.S. Blackburn (Canal Zone 1941)

31 March (Canal Zone ) within release Official goes into circulation Stamp J.C.S. Blackburn face value 50 United States cent

Stamp J.C.S. Blackburn in catalogues
Michel:	Mi: US-CZ D8I
Stamp Number:	Sn: US-CZ O7

Stamp is square format.

Regular issue overprinted in black Type I: PANAMA 10mm long

Also in the issue Official:

• Stamp - Jackson Smith face value 15;
• Stamp - George Washington Goethals face value 3;
• Stamp - J.C.S. Blackburn face value 50;
• Stamp - William Crawford Gorgas face value 1;
• Stamp - J.C.S. Blackburn face value 50;
• Stamp - Harry Rousseau face value 20;
• Stamp - Henry Foote Hodges face value 10;
• Stamp - Gaillard Cut face value 5;