Just a guess,it looks like something a band member would wear?....Pete.
JEDEM DAS SEINE
can't find a better image than this, but yours look very similar to these and if these are accurately described elsewhere, yours are civil war period and of the 175th infantry regiment.
i'm absolutely no expert with these at all. i merely provide the following photo of similar epaulettes:
Templehof is correct, of course. A pair of Ep's from the 175 Infantry and in Superb Condition! It's extremely rare to see the fringe still white. A beautiful pair and still with their original buttons. Nice!
"Much that once was, is lost. For none now live who remember it."
What do you think they might be worth?