Dan Post grey boots

I have these grey Dan Post boots, there is a lot of numbers in the boot and says 12 and I need a 12 D so they are too snug for me but in great condition. There is a 752323 with a 937 below it, a 06977 with a 12 below it and a 11 1/ something I can't read with a 84 below it so not for sure if it is a 12 or a 11 1/2. Update...I found out they are size 11 1/2 B