Small 6oz juice glass ...
I searched for:
R in Clover
R in Cloverleaf
R in Triple Circle
R in Joined Circle
R Italian Glassmaker Mark
R Glass Maker Mark - got all kinds of booze hits returned here 🙂
No luck 😞
I'm ̶p̶r̶e̶t̶t̶y̶ ̶s̶u̶r̶e̶ certain the lunatics have taken over the asylum.