The serial "24120" is authentic for this aircraft, but it does not match the USAF markings because it's a US Navy serial. This EB-47E was delivered to the USAF on 21 Sep 1953 as 52-412 (tail number 20412), and used as an electronic test platform. It was transferred to the US Navy in 1965, where it became BuNo 24120 and was used in Electronic Counter Measure testing until retired from service in Dec 1977. The odd thing here is that BuNo 24120 had earlier already been used by a TBF-1.