Unlisted version of the design in catalogs for the foreign market - without pattern numbering, but erased with a single perforation.
Perforation type appropriate for the era, characteristically irregular, but perforator diameter smaller than typical on domestic patterns of this denomination. Approximately 8 mm, against a typical +/- 11 mm.
The catalog does not note any variation of the 1 zloty pattern erased with only a single perforation at all. Here, the pattern on the S.57.E series noted so far only as a version without perforation, or with double perforation in a horizontal arrangement. Whereby the perforated version is additionally numbered with the pattern's own numbering. Here pieces without this numbering (like Miłczak 47.Wa), but cancelled with a single perforation centrally.
Beautiful state of preservation. No deflection in the field, only a slight bend in the lower left corner.
