Gösta Knochenhauer:
The Debut of Another Engraving Giant
Gösta Knochenhauer:
Swedish stamps by Martin Mörck, Scott # 1719-1722
Gösta Knochenhauer:
Swedish stamps by Martin Mörck
Gösta Knochenhauer:
Swedish stamps by Martin Mörck, Scott # 1917
Gösta Knochenhauer:
Swedish stamp by Martin Mörck, Scott # 1235
Gösta Knochenhauer:
Swedish stamp by Martin Mörck, Scott # 1266
Gösta Knochenhauer:
Swedish stamp by Martin Mörck
Gösta Knochenhauer:
Czeslaw Slania stamp by Martin Mörck
Gösta Knochenhauer:
Birds in the Baltic Sea
Gösta Knochenhauer:
Czeslaw Slania stamp and FDC by Martin Mörck