Trident Overprints -Poltava. 1918, black overprint (type 1) on 7r black and yellow, printed on vertically laid paper, postal cancellation, VF and scarce, expertized by Dr. Seichter, C.v. $300 (Image)

Trident Overprints -Poltava. 1918, black overprint (type 1) on perforated 10r red, yellow and gray, Poltava Gub. ''25.10.18'' postal cancellation, VF, this stamp priced with ''-'' in the Catalog, Est. $150-$200 (Image)

Trident Overprints -Poltava. 1918, bluish green (type 1) and black (type 2) overprints on perforate horizontal pair of 70k brown lilac and orange, full OG, NH, VF and scarce positional item, expertized by Dr. Seichter, ex-Dr. Zelonka, C.v. $425 as singles (Image)

Trident Overprints -Poltava. 1918, black overprint (type 2) on 7r black and yellow printed on vertically laid paper, postal ds, VF, ex-Dr. Zelonka, C.v. $300 (Image)