International Conference broadcasting at high frequencies

20 £. - Palazzo della Signoria, the Columbus Monument and Castle of Rapallo - Color Purple - Stamp Perforation 14 ¼ × 14 b - Watermark wheel I - Intaglio printing - Printed from IPS Workshop cards values ​​- Sheets 50 - Size 24 × 40 (mm) - Drawing L. Giani - Circulation 2.003.000.