Portrait of Albert. D. Kalonji
Date of Issue: unknown, 1961
Printer: unknown 
Quantity: unknown
Designer: unknown.

Stamp dimensions: 25 x 36 mm
Perforations: 10,5
Varieties:

 

 No’s 25-28.

 

 Example of a non-perforation of the series, 25-28.

 

 Double perforation of no 25, the others are not known to me.

 

 

 

 Mini sheet Dimensions: 95 x 135 mm

 

 

Mini sheet with perforation, this was done to make a single 50F stamp.

 

 This is probably a proof, I have no further information.