Posted by Lothar Schuh on 20-08-2020 14:08
#1
Hello,
I do not make a real progress.
1 mm, found in Schwetzingen/Germany, 17 Aug 2020
This goes to the limit of my Microscope.
Is my guess in the right direction?
Regards
Lothar
Edited by Lothar Schuh on 20-08-2020 14:10