1860's Baseball CDV from 1880

[prewarsports]

I am sure many of you saw the 1860's CDV photo of an Iowa City Baseball team that ended on ebay last night. I was watching it and trying to determine the team and the era and was prepared to pony up for it. Everything points to the late 1860's including the photography style on the gilded edge CDV mount, except for one thing. The Catchers mask. Since it was not invented until the late 1870's and not really used in large quantities until about 1879-1882, this photo is a good 10-15 years later than you would think from a quick glance. Still a good looking team photo but the $500 price tag would seem to indicate that the buyer thought it was from the 1860's as well.