Dial
Dial
- Georgetown 1981 Guyana Telecommunications Corporation
- 28cm
1981 - Issues no. 1 April ; nos. 2 - 4 1982 - Issues no. 1 - 4 1983 - Issues nos. 5 - 11 1984 - Issues nos. 12 January ; 13 June-July 1985 - Issues no. 14 - July ; no. 15 December 1986 - June
D4565
1981 - Issues no. 1 April ; nos. 2 - 4 1982 - Issues no. 1 - 4 1983 - Issues nos. 5 - 11 1984 - Issues nos. 12 January ; 13 June-July 1985 - Issues no. 14 - July ; no. 15 December 1986 - June
D4565