[Jim P.]

"Neither Hackl, Menge nor Struckmann were in Spain with the Tophatters of 2./J88, so falling from listing...Furthermore, according to Osprey Aircraft of the Aces-Bf109D/E aces 1939-41 book, Robert Menge claimed four Blenheims IV's during the disastrous Aalborg raid on 13 Aug. aboard the 'Black 1' "

While the tophat is indeed associated with Spanish service, I think, in this case, 5./JG 77 also used it as a Staffelbadge.