A bit of info from Vol 3 of 'Luftwaffe Crash Archive' Chris.
It's shown as Wn.3309 from the Crash Report. The aircraft departed St.Omer at 11.00hrs on a bomber escort mission, attacked at 16,000 feet by four Spitfires. The whole raid was broken up and turned back. The Me110 was completely destroyed. A label showed the aircraft was constructed by Focke Wulf, FZB, Bremen, with some parts supplied by Gothaer Waggonfabrik. AG.
The unit I.D was deduced from the pilot's I.D. disc.
Hope this helps.