This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Meyers s. with diagrams of Fig Expansionrod Fig Martignoli apparatus for spiralbore carving mit Abbildungen von Fig Expansiondorn Fig Apparat von Martignoli spiralbohr diagrams of Fig Expansionrod Fig Martignoli apparatus for spiralbore carving
Page 2023 Free-images.com. All images are Public Domain