Messerschmitt Bf 109 11 July 1938 when Erhard Milch finally allowed Willy Messerschmitt to acquire the company. All Messerschmitt aircraft that originated after that date, such as the Me 210, were to carry the "Me" designation. Despite regulations by the RLM, wartime documents from Messerschmitt AG, RLM and "Luftwaffe" loss and strength reports continued to use both designations, sometimes even on the same page. All extant airframes bear the official "Bf 109" designation on their identification plates, including the final K-4 models. The aircraft was often referred to by the folk-designation, 'Me 109', particularly by the Allies. The aircraft was often nicknamed "Messer"
Messerschmitt Bf 109 operational history by the Commander Adriano Visconti. The other ANR fighter unit, II° "Gruppo", that had given at the end of May 1944 its G.55s to I° "Gruppo", had been re-equipped with 46 ex I./JG 53 and II./JG 77 Bf 109 G-6. On 22 June 1944, it took off on its first operational flight with its Messerschmitts and three days later it shot down two P-47s from the Gaullist French G.C.II/3. At this stage, Luftwaffe ordered ANR pilots to operate outside Italian borders. For instance, on 25 July, 18 Bf 109Gs from II° "Gruppo" were ordered to move to Tulln, in Austria.