Similar to imprint F, but with a serial letter followed by an italic “1” of the same size as the numerials of the plate number on the opposite side of the imprint from the plate number.
Used on all positions of plate 270-349 of the 1890 issue
Similar to imprint F, but with a serial letter followed by an italic “1” of the same size as the numerials of the plate number on the opposite side of the imprint from the plate number.
Used on all positions of plate 270-349 of the 1890 issue