Children Books And Songs WeekOriginal vintage advertising poster for the Week of Children's Books and Children's Songs held from 16 23 April 1961 in Bulgaria featuring fun and colourful cartoon artwork of an old man wearing a long red pointed hat and pointed shoes reading a book and riding a cockerel chicken walking between leaves on the black ground against a blue painted background, the bold white title lettering below and the date running vertically on the side. Horizontal.