Robert Benninghoff – Dates to Remember
DIE HARFE No. 157, page 6-7

Hans Bergdolt – From Ireland to Germany (1840 to 1875): Postal History of Covers
DIE HARFE No. 124/125, page 24-37; No. 126, page 8-17

Johannes Boine – Marble for Ireland
DIE HARFE No. 154, page 28-29

Stan Challis – The Belfast Split
DIE HARFE No. 169, page 24-25

Wolfgang Fiedler – The mysterious 4
DIE HARFE No. 138,  page 16-17

Axel Frauenrath – Airships – Flying in a Different Way
DIE HARFE No. 118/119, page 5-39

Hans-Jürgen Goebelbecker – Irish Post Offices and their Postmarks since 1600, 2nd Edtion
DIE HARFE No. 164, page 49-58

Brian Harmon – Newly Discovered Photo Essays – VOX HIBERNIAE
DIE HARFE No. 134, page 42-43

Heinz-Jürgen Kumpf – Irish Private Courier Mail 1981-1983
DIE HARFE No. 122, page 35-40

Richard Lütticken – Post-war Censorship
DIE HARFE No. 139, page 19-21; No. 140/141, page 12-17

Dieter Michelson – Ireland and the Postal Reform
DIE HARFE No. 131, page 12-27

Héloïse Mitchell – Richard Joseph King – The Master from Mayo
DIE HARFE No. 146, page 30-32