Here is a brand new one
http://wkc-solingen.de/newshop/image/stichD.jpg
There is some thought that the British 1796 was of German styling but only insomuch as to the general hilt profile.
Condition is just a factor of condition. Something may look and feel a great deal older than it is. This sword is not exactly in the same vein as 20th century postal degen but of the same general family of dress swords.
I suppose there was no reason for me to reply at all but have offered my impressions. Last I looked (taht was a long time ago though, Rob Miller of Lion Gate had a very similar example with a metal vs wire grip. Not that that means anything aside from more indication of the longevity for the general pattern (folding inboard guards or not).
Old Swords has a later infantry example. I see others round and about but not with the grenadier pommel. On what exactly are you basing the 1800 ballpark?
Cheers
GC