i managed to get an expanded version of a section of the blade from a higher resolution photo. there does appear to be some worn engraving or etching evident in the fullering area, but the yellow metal band at the front of the handle, and by inference, the similar chape looks more like it was 'decorated' with pointillist impressions from a nail point

. could all be some open filigree tho, it's a bit blurry. will know more after arrival. (hopefully it will be)
p.s. - no.7: Blackadder's personal assistant, Baldrick, can't afford spinach. he can't afford a surname either. he does however grow turnips. usually in the dirt accumulated behind his ears and in other crevasses best not mentioned. he does however, have a cunning plan. for those from outside the UK, see
https://www.youtube.com/watch?v=rzHn2H2V8N4 for more information.
p.p.s. : one of the eight royal ravens who live permanently at the tower of london is named Baldrick.