Check out my books on the Overrun Countries Series available on eBay...
Book 1 - The Poland
Stamp & Its Varieties
Book 2 - The Czechoslovakia
Stamp & Its Varieties
Book 3 - The Norway
Stamp & Its Varieties
Book 4 - The Luxembourg
Stamp & Its Varieties
Book 5 - The Netherlands Stamp & Its Varieties
Book 6 – The Belgium Stamp & Its Varieties
Book 7 – The France Stamp & Its Varieties
Book 8 - The Greece Stamp & Its Varieties