HELGOLAND

A08.01 Grosses Handbuch der Fälschungen by O.E. Stiedl and F. Billig, - HELGOLAND - 1935.
A08.02 Helgoland, A Key to the identification of originals and reprints by R. Pollard, 26p.
A08.03 Forgery and Reprint Guide to 19 Heligoland Reprints, J. Barefoot, 1984, 44p.
A08.04

Alt-Deutschland unter der Lupe, Vol. 5, HELGOLAND, LUBECK

 

HELGOLAND Clippings

A08.500CL Helgoland Revisted by H. Amtmann, clippings from GPS Specialist, April 1976 - Jan.1973
A08.501CL Helgoland Reviewed by H. Amtmann, clippings from SPA Journal, March-Nov. 1971.
A08.502CL Helgoland, A Simplified Study by D. Patton, clipping from The American Philatelist, Aug.1956, p. 8.
A08.503CL Serrane Guide: Helgoland, clipping from The American Philatelist, April 1990, pp. 349-350
A08.504CL The Strange Story of the Heligoland Reprints by G.I. Hardwicke, clipping from The American Philatelist, 1949.
A08.505CL Heligoland: Guidelines for Identification of Originals and Reprints by Robert T. Pollard, clipping from The American Philatelist, November 1987, pp. 1041-1052