It's tough bro...unless you've got the exact game it was used in, it's hard to photomatch a stick. The best I've found you can do is find general timeframe photos in which the stick may have been used.
It might be tough to find older photos online too. Being a MacInnis collector, I'd actually say go look at your hockey cards and see if you can match up your stick with one on a card photo to give you a general idea of when the stick may have been used. When I picked up a Brian Bradley gamer for a friend's birthday, I went back and looked at some of his old hockey cards to gather a general timeframe in which he used the stick...I couldn't get him an exact date of use, but I got it to the season/team he played for the year he would have used that stick.