The overprints of this issue shows many different flaws.
Most known is the 1916-1617 error.
1617_1.jpg (1714 bytes)
Courtesy Branimir Lambiev
earl5.jpg (13371 bytes)
courtesy Earl Galitz
Right side imperf, blue line

Left top, Rowenia

Middle lower row, missing lin in E

Two bottom stamps: Romeina  (and the I that looks like a N turned differently)

Bottom left, Romemia