It defntiely a test ball as I received them in the past. The model is unknown for the tester as Titielst wants blind feedback on how the ball perfroms and doesn't want any bias if the user is aware that it is a Pro V1, AVX, NXT, etc...
Being a part of the ball testing panel, occassionally, is a very fun experiencve and make you feel like you are impacting the future of the retial ball market.
Keep the Titleist!

Huge Titleist fan.. Play ProV1X's. Cameron Crown Select is also a favorite.

Very open to testing new clubs and balls .

I’ve always played proV1’s but I just switched to the Bridgestone tour B xs I feel like I’ve lost about 4-5 yards off the tee but What I’ve gained around the Green Is amazing I hope Titleist can make something that brings me back to there ball

That's a pretty cool find. I was lucky enough to be given sleeves of proto 2019 prov1 and x.

Don't loose it