1860 10k Poland Kingdom First Issue, Russian Empire (Mi. 1, Fi.1, Warsaw Postmark '1', CV $300)(Image 1) (Image)

1860 10k Poland Kingdom First Issue, Russian Empire (Mi. 1, Fi.1, Skierniewice Postmark '211', CV $450)(Image 1) (Image)

1860 10k Poland Kingdom First Issue, Russian Empire (Mi. 1, Fi.1, Zlotorya Postmark '297', CV $420)(Image 1) (Image)

1860 10k Poland Kingdom First Issue, Russian Empire (Mi. 1, Fi. 1, Rare Red 'DB' Droga Bydgoska Railroad Postmark, CV $2,000)(Image 1) (Image)

1858 Warsaw '282' Cancellation Postmark on 10k Russian Empire, Russia, No Watermark, Perf 14.5x15 (Zag. 5, Zv. 5, Kr. 5, CV $230)(Image 1) (Image 2)

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1865 Warsaw Poland Cancellation Postmark on 3k on piece Russian Empire, Russia (Zag. 12, Zv. 12, Kr. 12, CV $120)(Image 1) (Image)

1866 Warsaw Poland Cancellation Postmark on 3k pair Russian Empire, Russia (Zv. 18b var, 'V' instead '3' on Background, Rare)(Image 1) (Image)

1865 Warsaw Poland Cancellation Postmark on 5k Russian Empire, Russia (Zag. 13, Zv. 13, CV $110)(Image 1) (Image)

1865 Warsaw Poland Cancellation Postmark on 10k Russian Empire, Russia (Zag. 14, Zv. 14, CV $80)(Image 1) (Image 2)

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1865 Warsaw Poland Cancellation Postmark on 10k Russian Empire, Russia (Zag. 14, Zv. 14, CV $80)(Image 1) (Image)

1865 Warsaw Poland Cancellation Postmark on 10k Russian Empire, Russia (Zag. 14, Zv. 14, CV $80)(Image 1) (Image)

1865 Warsaw Poland Cancellation Postmark on 10k Russian Empire, Russia (Zag. 14, Zv. 14, CV $80)(Image 1) (Image)

1865 Warsaw Poland Cancellation Postmark on 20k Russian Empire, Russia (Zag. 15, Zv. 15, CV $150)(Image 1) (Image 2)

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1865 Warsaw Poland Cancellation Postmark on 30k Russian Empire, Russia (Zag. 16, Zv. 16, CV $150)(Image 1) (Image)

1866 Warsaw Railway Station Cancellation Postmark on 5k Russian Empire, Russia (Zag. 19, Zv. 19, CV $60)(Image 1) (Image)

1866 Warsaw Railway Station Cancellation Postmark on 10k Russian Empire, Russia (Zag. 20, Zv. 20, CV $50)(Image 1) (Image)