Българска народна банка

The obverse features the coat of arms of the People’s Republic of Bulgaria, with the year of minting ‘1979’ and the word ‘ЛЕВА’ (levs) horizontally below, within a dotted ring which ends in floral motifs, the circumscription ‘НАРОДНА РЕПУБЛИКА БЪЛГАРИЯ’ (People’s Republic of Bulgaria) and the value number ‘5’.

The reverse depicts a stylised radio antenna emitting radio waves. The design is surrounded by the words ‘СТО ГОДИНИ БЪЛГАРСКИ СЪОБЩЕНИЯ’ (100 Years Bulgarian Telecommunications) and the anniversary years ‘1879’ and ‘1979’, separated by the emblem of the Bulgarian Posts.