Gösta Knochenhauer:
Danish stamp by Czeslaw Slania, Scott # 402
Gösta Knochenhauer:
Danish stamp by Czeslaw Slania, Scott # 403
Gösta Knochenhauer:
Danish stamp by Czeslaw Slania, Scott # 408
Gösta Knochenhauer:
Danish stamps by Czeslaw Slania, Scott # 409-410
Gösta Knochenhauer:
Danish stamps by Czeslaw Slania, Scott # 520-521
Gösta Knochenhauer:
Danish stamps by Czeslaw Slania, Scott # 561-562
Gösta Knochenhauer:
Danish stamps by Czeslaw Slania, Scott # 567-569
Gösta Knochenhauer:
Danish stamps by Czeslaw Slania, Scott # 573-575
Gösta Knochenhauer:
Danish stamps by Czeslaw Slania, Scott # 696-699
Gösta Knochenhauer:
Danish stamps by Czeslaw Slania, Scott # 735-736
Gösta Knochenhauer:
Danish stamp by Czesław Słania, Scott # 737
Gösta Knochenhauer:
Danish stamps by Czeslaw Slania, Scott # 738-739
Gösta Knochenhauer:
Danish stamps by Czeslaw Slania, Scott # 861-862
Gösta Knochenhauer:
USA stamp by Czeslaw Slania, Scott # 2036
Gösta Knochenhauer:
USA stamp by Czeslaw Slania, Scott # 2154
Gösta Knochenhauer:
Polish stamp by Czeslaw Slania, Scott # 672
Gösta Knochenhauer:
Polish stamp by Czeslaw Slania, Scott # 737
Gösta Knochenhauer:
Polish stamp by Czeslaw Slania
Gösta Knochenhauer:
Polish Stamp by Czesław Słania
Gösta Knochenhauer:
Polish Stamp by Czesław Słania
Gösta Knochenhauer:
Polish Stamp by Czesław Słania, Scott # 513
Gösta Knochenhauer:
Polish stamps by Czesław Słania, Scott # 518-520
Gösta Knochenhauer:
Polish stamps by Czesław Słania, Scott # 531-532
Gösta Knochenhauer:
Polish stamps by Czesław Słania, Scott # B65 & 537
Gösta Knochenhauer:
Polish stamp by Czesław Słania, Scott # 544
Gösta Knochenhauer:
Swedish stamps by Czesław Słania, Scott # 981-985
Gösta Knochenhauer:
Swedish stamp by Czesław Słania, Scott # 550
Gösta Knochenhauer:
Swedish stamp by Czesław Słania
Gösta Knochenhauer:
Swedish stamp by Czesław Słania, Scott # 1327
Gösta Knochenhauer:
Swedish stamp by Czesław Słania, Scott # 1340
