I never saw a DB 990 with full fenders. Are you sure it is a 990, or is it a 995. 990s had a 4/47 engine and two stage clutch. 995s had 4/55 engines and a independent PTO clutch lever at the left of the seat.
I have noticed a lot of, lets say personal modifications to your tractors, such as the relocated muffler on the 2094, and mismatched colors on the 70 series tractors. (Not condeming you), and perhaps you changed the fenders on your DB also.
The pic. I posted is of our DB 990 that I gave a Dupont Overhaul to last spring.