clgo:identificationSymbol | - 1949 – Apr 1951)
- Aseax
- NG Sep (1939 – Apr 1945,
- RAK (Jul 1946 – 1949)
- Squadron Codes
- WQ (Jan 1939 – Sep 1939)
- (No. 604 Squadron, being the County of Middlesex squadron, took part of the armorial bearings of the county, a seax, to commemorate that association)
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