Pretty certain it is. I'll try and look them up in morning but until then here ya go. Let me know your thoughts. I have a roll of these.
I think it's 1959P-1DO-002 | CLASS 2 (MDS) CONECA: DDO-002 | Crawford:CDDO-002 Wexler: WDDO-002 | FS#:1C-022.3