Picked these up today, have one more on layaway but I was attributing these I am pretty sure the 1810 is an O-109, the 1826 is an O-108, the 1828 I am not really sure about. I think it is an O-121 but I'm not absolutely positive. Any help would be appreciated.
I think the 1810 is attributed correctly. Not 100% sure on the 1828 - I think so, but I wish I could see line 2 of stripe 1 to cross bar 2. Can you see it?
I believe that I see it. Leave me alone when I say this KRISPY, but I am no expert in the Overton system for Halves.