150th anniversary of the invention of the Volta pile

Data sheet

Issue

7 november 1949

Face value

20 L.

Description

Pila di Volta

Color

red

Perforation

14 1⁄4

Press

calcography

Printed by

I.P.S. Officina cards values

Sheets from

60

Dimensions

26 × 31 (mm)

Watermark

wheel I

Drawing

Frigerio

Circulation

93.000

Unificato Catalog

52

Specific References