Hello Robin,
Maybe you are already aware of this:
K5607
K5607 to Martlesham 9 January 1936, to Felixstowe as seaplane.
K5638
K5637-K5640 to B Flight Lee-on-Solent between 18 May 1936 and 22 May 1936.
Source: Blackburn Aircraft since 1909 (A J Jackson).
Regards
Finn Buch
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