Clint
To be honest, this one looks like C.2218 to me (just like the seller says)
Since I am hopeless with German two-seaters during WW 1 and even worse when it comes to wrecks, I cannot say what this is.
Since I also believe the two small digits above the actual Bestellnummer should be interpreted as 18, I think (think, mind you
) we are dealing with a DFW C.V C.2218/18
Cheers
Stig