The file 'Fleissner Grille (Fleißner-Schablone, Fleißnersche Schablone) 3D Printer Model' is (3mf,stl) file type, size is 59.6KB.
Fleissner grille (Fleißner-Schablone) I'm using teaching my 5th grade students about cryptography.
The dimesions are: 60×60×1 mm.