17th century European sword - Looking for assistance with blade marks

[cornelistromp]

These walloon swords were produced under contract from amsterdam arms dealers in solingen. In solingen an amsterdam mark was already smashed into the blade, this is the vague mark; a shield with three crosses under a royal crown. (instead of the imperial crown).
Sometimes the initials of the solingen smith were also struck into the blade. thus it is known that these swords were produced in solingen.

After the weapons arrived in Amsterdam they were inspected and after aproval an Amsterdam proof mark is stamped over the old mark. (This is the clear mark with the three crosses.)

see attachment of the marks from a walloon sword from the visser collection: HV-693 p150 visser cat part3, JP puype.