#sem hartz

[mioritic]

Luxembourgish postage stamp depicting the Abbey of Echternach, released for the 12th centenary of the death of St. Willibrord

Designed by Samuel Louis (Sem) Hartz, issued 1939

[picote]

Netherlands, 1947 // designers: Sem L. Hartz and Jan van Krimpen.

[mioritic]

Postage stamp depicting the Benedictine Abbey of St. Maurice and St. Maur and a view of Clervaux, Luxembourg

Designed by Samuel Louis (Sem) Hartz, issued 1961

[mioritic]

Postage stamp issued to commemorate the 1200th anniversary of St. Willibrord's death, depicting the annual dancing procession in Echternach, Luxembourg

Designed by Samuel Louis (Sem) Hartz, issued 1939