FINLAND – Gummesson, Rolf: Finnland – frühe Ortsstempel (1964), 96 pages, in German language, brochure, signed by the author + Gummesson / Ossa / Stenberg: The Early Postmarks of Finland (1974), trilingual, 142 pages, brochure with dust jacket. Both books with dedications! Estimate: 50 Euro
