Decorated lance head - identification thoughts please

[BartP]

Dear all,

Having had no luck identifying this lance head through several museums, forge experts in Klingenthal and archaeologist friends, finally I was guided to this treasure trove of knowledge and passionate experts. I look forward to exchanging with you!

So as my first post you'll find attached several pictures of a socket lance head. I have not seen anything like this in either shape or inlaid symbols, so can't tell if it's Medieval or earlier Saxon, Viking, Hun....possibly even neolithic Danube from the inlay?

It looks iron (is magnetic, but nowhere near as much as modern iron) and has traces on the blade of what looks like gold and bronze decoration & shaft ring.
In all likelihood it was found in the Upper Rhine area.

Looking forward to your thoughts, and if possible pictures or links to any positively identified similar objects.

With kind regards / Bart