[Jim P.]

The only thing I have for WNr. 4452 is a photo from a Japanese photo compilation 'Warbirds Photo Album #2' on p.118 which shows the front quarter/third of the machine with the WNr. under the cockpit.

I have 3 'U5+GL's documented from losses:
Do 217E-4, 5462, MÜLLER, Ofw. Karl, , , 3., KG 2, gelbe G, U5+GL, , , 03-Feb-43, MIA with crew due to Luftkampf with Beaufighter MK.VI from 219 Sq. (F/L Willson & Bunch) during sortie to Sunderland. Crew FSA., F RK., Lfl.3/Kanal, Gen.Qu.6.Abt. (mfm #8)-Vol.14; Balke, Der Luftkrieg in Europa, II, p.449; The Blitz, Then & Now, III, p.219, , bei Muston, Yorkshire, 100%, F, B Fw. Heinz Lewald, Bf Uffz. Friedrich Fruth & Bs Uffz. Heinrich Wilmsen, ,
Do 217M-1, 326258, n.n., , , 3., KG 2, , U5+GL, , , 12-Feb-44, Luftkampf with enemy fighter, probably from 263 Sq. (S/L Warnes). Bs & Fm WIA, Fw KIA. Took off from Eindhoven., WNr. 26258 per Balke., Kanal, Balke, Der Luftkrieg in Europa, II, p.479, , Josselin, 100%, F, Bs Uffz. Hans Pakulla, Fw Uffz. Bruno Fiedler & Fm Uffz. Josef Thiel, ,
Do 217M-1, 56096, Lemme, Ltn. Wolfgang, , , 3., KG 2, , U5+GL, , , 04-Dec-43, WIA due to Luftkampf with Typhoons from 198 & 609 Sq. during training flight. B & Bs also WIA., , Lfl.3/FR, Gen.Qu.6.Abt. (mfm #12)-Vol.24; Balke, Der Luftkrieg in Europa, II, p.471, , Fl.Pl. Eindhoven, 100%, F, B Ogefr. Erich Stiel, Bf Uffz. Hahme & Bs Ogefr. Alfred Grosse-Hokamp, 15.00,