Clarence William Hennan (May 24, 1894 – February 28, 1956) was an internationally recognized philatelist known for his collection, his exhibits at various stamp exhibitions, and for his expertise in evaluating the authenticity of rare stamps.
Clarence William Hennan (May 24, 1894 – February 28, 1956) was an internationally recognized philatelist known for his collection, his exhibits at various stamp exhibitions, and for his expertise in evaluating the authenticity of rare stamps. (en)
Clarence William Hennan (May 24, 1894 – February 28, 1956) was an internationally recognized philatelist known for his collection, his exhibits at various stamp exhibitions, and for his expertise in evaluating the authenticity of rare stamps. (en)