Italy postage stamps year 1976 150 Lire imperforated

• The imperforate version is listed in some Italian/Dutch/German philatelic sites under catalogue number 1339Ba, described as “non dentellato” / ungezähnt / imperforated.
• It seems the regular issue of the 150 Lire in 1976 was part of several series (Turismo, Siracusana, etc.) with perforation. The imperforate version is a variant (error / special print) rather than the standard issue.
• Listings show that mint, never hinged (MNH), imperforate copies are occasionally offered. One example: an MNH 150 Lire imperf. no. 1339Ba in a listing from Milano.

Key details / identification

To verify if a stamp is the imperforate variant, check for:

• Absence of perforations on all four sides. Imperforate means there are no perforation “holes” or “teeth”. The edges are clean/cut.
• The stamp matches the design of the regular 150 Lire issue of the same year in color, image, watermark etc. Only difference should be perforations.
• Catalogues list it under 1339Ba in the Italian catalogue (Sassone) etc. So that’s a reference to compare your stamp.