1902 2k Russian Empire, Vertical Watermark, Perf 14.25x14.75 (OFFSET, Sc. 56, Zv. 59, Print Error) (Image)

1902 7k Russian Empire, Vertical Watermark, Perf 14.25x14.75 ('Accordion' Fold, Sc. 59, Zv. 62, Print Error) (Image)

1902 14k Russian Empire, Vertical Watermark, Perf 14.25x14.75 (SHIFTED Perforation, Sc. 61, Zv. 63, CV $50) (Image)

1904 10k Russian Empire, Vertical Watermark, Perf 14.25x14.75, Pair (SHIFTED Background, Sc. 60, Zv. 68, Print Error) (Image)

1904 10k Russian Empire, Vertical Watermark (NO BACKGROUND, Rare Print Error) (Image)

1904 Russian Empire, Charity Issue (Perforation 13.25, Full set, CV $160) (Image)

1908 15k Russian Empire (MISSED Perforation, Print Error, Canceled) (Image)

1908 25k Russian Empire, Block of Four (SHIFTED Background, Print Error) (Image)

1908 1r Russian Empire (MISSED Perforation, Print Error, MNH) (Image)

1917 3.50r Russian Empire, Perforation 12.5 (MISSED Perforation, Sc. 137a, Zv. 144 A, Print Error) (Image)

1915 5r Russian Empire (SHIFTED Perforation, Sc. 108, Zv. 121, Print Error) (Image)

1915 5r Russian Empire, Pair (MISSED Perforation, Sc. 108, Zv. 121, Print Error, Signed, MNH) (Image)

1915 10r Russian Empire (Strongly SHIFTED Background, Sc. 109, Zv. 122, Print Error, Signed) (Image)

1916 10k/7k Russian Empire (Strongly SHIFTED Overprint, Sc. 110, Zv. 123, Print Error) (Image)

1916 20k/14k Russian Empire, Pair (SHIFTED Overprint, Sc. 111, Zv. 124, Print Error, MNH) (Image)

1917 10k/7k Russian Empire (OFFSET of Overprint, Sc. 117, Zv. 125, Print Error) (Image)

1917 10k/7k Russian Empire, Pair (DOUBLE Center, Sc. 118, Zv. 126, Print Error, MNH) (Image)