German sentence to translate (4)

help please

geändert und schrager rand gleich 6/10/1920

“und” is strange in this sentence
"gleich" also

modified “and” slanted rim “same” 6/10/1920

Thanks
JP

I mistook because of this funny writting!

It is:
gerader und schräger rand gleich 6/10/1920

and means
identical straight and slanted rim 6/10/1920

jp