Vambola Hurt

Eesti. Estonia. Estland

Philately & Postal History Handbook. Catalogue. Philatelie & Postgeschichte Handbuch. Katalog

Hurt, Ojaste

Eesti. Estonia. Estland

Philately & Postal History Handbook. Catalogue. Philatelie & Postgeschichte Handbuch. Katalog

Hurt, Ojaste

Eesti Filatelist 39, 2005

The Estonian Philatelist. Der Estnische Philatelist