"Randdrucke" printing


There is a variety, somehow common but not so known, that takes the names of "randdrucke" printing: translated in English it sounds like "border line printing". May be some of you has some of these parts in your collection without even knowing.
It consists in a thickening more or less evident of the external borders (vertical more than horizontal) of the stamps coming from the sheet borders.
I show here a representation of a table of the first issue with in evidence the margins where it's possible to find this printing: the printing is usually more frequent in the composition external stamps (in yellow) while it is much more rare and less evident in the internal ones of the various groups (in green).

Composition
Fig. 1:
the printing composition


Probably the printing machine was putting pressure not always perfectly uniform on the sheets to be printed: the pressure was more on the external of the composition and for that reason the inking of the margins may sometimes be smeared and/or very abundant. This variety is present both in the first issue stamps (much more frequent in the ones on handmade paper) as well as in the second issue and on some newspapers revenue stamps, even if less frequently and with inking intensity usually more contained.
Here are some samples (Fig. 2 to 15) that show this type of printing: stamps do exist where it is more visible but at this moment I don't have any of them as well as I don't have at this time scans of parts of the second issue with this variety. As always if somebody can make them available to me I would be happy to reproduce them here.
It should finally noticed as we can find this characteristic, even if with less evidence, in other postage stamps as for instance the ones of the first issue of Modena and Parma...


Right
Right
Left
Fig. 2-3-4: two 10 centesimi with right randdrucke and one with left randdrucke
The second stamps have also a natural paper wrinkle

Left
Left
Fig. 5-6: two 15 centesimi with left randdrucke

Left
Left
Right
Left
Left
Right
Fig. 7/12: two 30 centesimi of the first type with left randdrucke (first row)
One right randdrucke and one left on the first type (second and third row)
One left randdrucke and one right in the second type (fourth row)


Right
Fig. 13: 45 centesimi of the second type with right randdrucke

Mercury
Fig. 14: Mercury with left randdrucke

Postage due
Fig. 15: Newspaper revenue stamp with left randdrucke.
From some samples that I was able to observe I noticed that in this stamp
very often the external composition samples do have a
paper vertical wrinkle close to the randdrucke,
so high was the pressure in that area.