Heinrich Köhler 383rd Auction – Day 5 Germany 1849–2000 – German Empire, German Colonies with Occupation Issues (G.R.I. and MAFIA), Plebiscite Areas, Germany after WWII – The Erik B. Nagel Collection (part III)

1916/25, Civil War and transition period, interesting, mounted collection with round 90 covers and cards with a variety of interesting and scarce pieces, including various and often scarce emergency cancellations, IRA censorships, mixed frankings Great Britain and overprint issue, overprint issue used in Great Britain, etc., including many registered letters. A very interesting object.