I found my set and scanned all the postcards. While scanning I started to think this is not a legitimate issue, based on the player selection and quality of the postcards.
I made a table of the players in the set. The table includes the number of the player in the set (I have the players listed alphabetically), the years the person played with the Yankees, the years the person was included in Jay's photo sets, and the year of the Jay's photo set the image used in the postcard set is from.
Set List.jpg
All 12 players included in the 1965 Jay's photo set are included in this set. However, 4 of the players (Boyer, Howard, Kubek, and Richardson) have photos that were used in earlier sets. I thought that was weird. And for the additional 13 players, why weren't people on the current roster used? Was this supposed to be a "Past and Present" type of set? If so, it seems like some better players could have been included. Lastly, it seems like many, if not all, of the photos are poorer quality than the photos used in the original Jay's photo sets. It seems like the photos used in the postcards are copies of the originals.
So, I did a search for 1965 Jay Yankee postcards and found that the set is listed on TCDB,
https://www.tcdb.com/ViewSet.cfm/sid...kees-Postcards
It is listed under unlicensed and as "1965 Jay Publishing reprint New York Yankees Postcards." It had photos of 14 of the players, so I added photos of the other 11. If you want to photos of all the "postcards," you can see them there.
I'm not sure that I would list this as a 1965 set because who knows when it was printed. I doubt that it was made by Jay Publishing. And, I doubt it is a "reprint" of anything. It is an unlicensed set made to appear to be a Jay's Publishing Yankee postcard set.
Lastly, why is SGC acting like this is a legitimate issue?