Numismatic Bibliomania Society:
Howard Gibbs auctioncatalog
Numismatic Bibliomania Society:
Howard Gibbs auctioncatalog 2
Numismatic Bibliomania Society:
Howard Gibbs auctioncatalog 1
Numismatic Bibliomania Society:
1936_PopularScence_HowardGibbs_article
Numismatic Bibliomania Society:
1936_PopularScence_HowardGibbs_article 4
Numismatic Bibliomania Society:
1936_PopularScence_HowardGibbs_article 3
Numismatic Bibliomania Society:
1936_PopularScence_HowardGibbs_article 1