24th Communication Conference

30 ¢ 1983

Куба

20 - 24 грн

ціна на 04.12.2022

World Communications Year

UIT / Telephone 5 грн	Telegram and airmail envelopes and U.P.U. emblem 7 грн	Telecommunications satellite and dish aerial 7 грн	UIT / Television / Radio 11 грн
24th Communication Conference 20 грн	"Methods of Communications" 4 грн