[Jim65]

There are a lot of these jerseys out there, I believe they all originally came from the Mets and were purchased by Ballpark Heroes directly from the Mets so they are team issued. They are currently selling a #27 on Ebay right now.

This part is just my opinion as a 30 year Mets game used collector. Every jersey I have seen like this is tagged as 1981, 1981 was the first year the Mets wore blue batting practice jerseys, I believe the Mets might have ordered these gray jerseys to be worn on the road during batting practice or possibly spring training but ultimately decided against it and these were recycled to be worn in the minor leagues. IMO, what you have isn't a Joe Torre game jersey, sorry.

A legitimate 1981 Mets game jersey would be tagged with a Set # and jersey number, like this.