1865 Letter Sheet bearing 1858 Perf 12½ 10k blue & brown, very fine Pernau (Reval) c.d.s. Very scarce. (Image)

1884 cover bearing 1866-75 Perf 14½ x 15 horizontally laid paper Arms 1k (2), 3k & 1875-82 2k Arms cancelled Warsaw c.d.s. to London, slight faults to left edge of cover and slightly soiled. Very scarce & attractive. (Image)

C1928 Essay of the 1913 issue 7kop Nicholas II SG. 130 - but a larger size 23 x 30mm in red on cream paper without wmk; taken from a sample sheetlet for the promotion of the Dr Eckerlin Rotary Printing Press. Photocopy of RPS Cert showing a horizontal pair accompanies. (Image)