Hello Kai,
No problem at all.
The length of the blade is 54 cm or 21,25 inch without the hilt.
About the silver parts, i used a jewelers silvercleaning cloth for a quick polish. I didn't clean it properly yet. That is why you see some colordifferences, wich is also due to the flashlight.
I will post a picture of the gangya area as you asked me later this week.
Regards, Henk