Portable Antiquities of the Netherlands, D. (2019). PAN-00026863 - military button, Dutch 19th-20th century: Engineers (helmet on dotted background). DANS/KNAW.
Chicago-Zitierstil (17. Ausg.)Portable Antiquities of the Netherlands, DataCurator. PAN-00026863 - Military Button, Dutch 19th-20th Century: Engineers (helmet On Dotted Background). DANS/KNAW, 2019.
MLA-Zitierstil (8. Ausg.)Portable Antiquities of the Netherlands, DataCurator. PAN-00026863 - Military Button, Dutch 19th-20th Century: Engineers (helmet On Dotted Background). DANS/KNAW, 2019.
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