Thank you for your comments and input,Victrix. I guess with the expert at the museum going by the old standard that records report 'hirschfangers', I ust accepted his word. (granted, he reported that there were apparently no positively identified jaeger sabers in the whole collection to show me). Then he provided the 'grenadier' pic, which is spot on, IF we accept that it is indeed French. It is still very strange to me, because Neumann shows several well-documented German swords with the brass bird hilt grip and weird straight 'tea drop' quilon. I've never seen this on a French sword until they sent me the pic above.
Maybe you are onto something, though, with your comment about an in-between. After all, sea service swords incorporated everything from marines to coast guard to port authority/dock security. I will continue to do research-