Germany, Official, 1920, 20pf Prussian blue. 1920 Glogau town cancel, deep color, Very Fine, a rare and elusive key shade variety, with 2007 H. Winkler certificate.
Michel No. 19 b; €950 ($1,170). Michel €950 ($1,170)
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Michel €950 ($1,170)

Germany, Official, 1923, 20Mrd Mk green & brown. Vertical strip of 3, 1923 Frankfurt town cancels, rich color, middle stamp with nibbed perf, otherwise Very Fine, with 2004 U. Fleiner certificate.
Michel No. 87; €780 for singles ($960). Michel €780 for singles ($960)
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Michel €780 for singles ($960)