Where would this New Model 1868 Spencer Rifle have been used?

[drm2m]

[Two Flints]

Franco-Prussian War -  see this link:

https://www.cascity.com/forumhall/index.php/topic,50755.msg621158.html#msg621158

[drm2m]

Thanks very much for your response. Very interesting--- now the owner of this Spencer rifle will have two rifles with possible Franco-Prussian War history.
These two rifles are recent acquisitions for him----I just help with the photos.