Need weatherstrip help

I purchased weatherstripping for my 1964/5 Barracuda and am comfused by the quarter window seal. The seal on the left is the original, the one on the right is the new seal.

Am I missing something? Looking at this backwards / upside down? This doesn't seem like it will work.

The people I purchased from, insist that this is the right weatherstripping.

Please advise,
Thanks, Dave