1915 10k Russian Empire, Stamp Money (SHIFTED Perforation, Sc. 105, Zv. M1, Print Error) (Image)

1915 10k Russian Empire, Stamp Money, Pair (DOUBLE Perforation, Sc. 105, Zv. M1, Print Error) (Image)

1915 15k Russian Empire, Stamp Money (MISSED Perforation, Sc. 106, Zv. M2, Print Error, MNH) (Image)

1915 15k Russian Empire, Stamp Money, Block of Four (IMPERFORATE, Sc. 106, Zv. M2A, CV $900, MNH) (Image)

1915 15k Russian Empire, Stamp Money, Pair (IMPERFORATE, SHIFTED Text on Back, Sc. 106, Zv. M2A, CERTIFICATE, CV $375, MNH) (Image)

1915 20k Russian Empire, Stamp Money, Pair (White Dot on the Collar, Sc. 107, Zv. M3, Print Error) (Image)

1915 20k Russian Empire, Stamp Money, Pair (IMPERFORATE, DOUBLE Print, Sc. 107, Zv. M3Aw, CERTIFICATE, CV $450, MNH) (Image)

1915 1k/1k Russian Empire, Stamp Money, Pair (OFFSET of Overprint, Sc. 112, Zv. M7, Print Error) (Image)

1917 2k/2k Russian Empire, Stamp Money (SHIFTED Perforation, Sc. 140, Zv. M10, Print Error, MNH) (Image)