Correction:
Brown wa NOT in SE5a. He was in F1 Camel.
Richthofen preferred the Alby until he got he DR I but, after he flew the DR I, he could not return to the Alby because it was ABSOLUTELY obselete at the time. He test flew the first D7 and could not wait to get it. Unfortunately he died before JG1 got the new D7. I have his autobiography for reference.
He had 61 kills in an Alby, D II, III and Va
perdweeb