1978 – 1980 Communication Satellite

Item: Two Communication Satellites
Denomination: S$10
Composition: 0.5000 Silver ASW
Weight: 31.1000 g
Diameter: 40 mm

Date	Mintage	Finish	Issue Price
2 Feb 1978	167,000	BU	$10.30
8 May 1978	10,000	Proof	$30.00
23 Jan 1979	168,000	BU	$10.30
14 May 1979	9,000	Proof	$30.00

The 1980 versions consist of BU and Proof, and both are made of nickel.