stopped by in Lawton on my way to Moore. I went to see some sirens and noticed that there were Cd yellow 2001s, mostly SRNS and only 1 2001-130. didn't get any pictures but went on google maps and saw they replaced the 15V2T-Bs and the 1 20V2T.
This replaced a 15V2T-B
This replaced a 15V2T-B at least a mile north
This one didn't replace anything
This 20V2T got SRN'd
and so did this 15V2T-B