I’ll first state that I have no skin in the game by sharing these auction links. Just wanted to pass along in case there were any Red Sox fans that wanted to score some rare penants off a smaller auction site for hopefully a good price.
It appears they are from 1915 and 1916.
https://auctions.ejsauction.com/auct...ant_F474D8393C
https://auctions.ejsauction.com/auct...ant_AD44709A72