Ref:
Jasta Boelcke by Norman Franks
Paul Bäumer is said to have used 3 different Albatros DV/DVa with Jasta B. These were 4409/17 (white edelweiss w/ red stripes), 4430/17, and 5410/17 (yellow fuselage w/ two black bands).
The Fokker DV flown by Paul Bäumer was essentially a conversion trainer for the Dr.I, to reacquaint pilots with the peculiarities of the rotary engine, and had no personal markings.
As for the Pfalz DVIII, Bäumer conducted his operational assessment tests in May, 1918. Paul Bäumer was credited with three victories on 23 March 1918, but his next victory with Jasta B was not until 5 September 1918.