#B223a Hungary - 1961 Stamp Day and Intl. Stamp Exhibition, Strip of 4 (MNH)
1961 Stamp Day and Budapest International Stamp Exhibition, horiz. strip of 4, #B220-B223. Designs: Views of Budapest: No. B221, St. Margaret's Island and Danube. No. B221, Fishermen's Bastion. No. B222, Coronation Church and Chain Bridge. No. B223, Mount Gellért.