Microtome sectioning an umbilican cord.
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Previously:
https://www.homemadetools.net/forum/...564#post215824
https://www.homemadetools.net/forum/...108#post191543
https://www.homemadetools.net/forum/...114#post187874
https://www.homemadetools.net/forum/...603#post219820
https://www.homemadetools.net/forum/...437#post219239
