This is the Roden 1/48 SE5a  kit #416  marked as the machine C.1149 as flown by Capt. Grinnell-Milne while he served with and commanded RAF #56 Sqdn.  After hostilities he had his machine's fuselage painted red.  The name "Schweinhund" recalled the days when Grinnell-Milne was a POW in 1915.