Diamond treatement plant (Botswana 1970)

23 March (Botswana ) within release Botswana development program goes into circulation Stamp Diamond treatement plant face value 3 Botswana cent

Stamp Diamond treatement plant in catalogues
Michel:	Mi:BW 58
Stamp Number:	Sn:BW 58

Stamp is square format.

Also in the issue Botswana development program:

• Stamp - Diamond treatement plant face value 3;
• Stamp - Copper and nickel mining face value 7;
• Stamp - Copper and nickel mining face value 10;
• Stamp - Orapa diamond mine and diamonds face value 35;