Are these the Decanters one of the Shawnee books mention as a possiblity? Before you answer, scoll down to the other pictures.
Interesting - huh. My "experts" are divided. Of course it is very hard to made a judgement not "in hand". The "in hands" say yes. What do I think - from here they look like Shawnee, but I'm not an "in hander".
Nothing to do with Shawnee or not, notice one has periods after the letters and the other doesn't.