officer's armband or 'brassard' measuring four-and-one-half by
This is the second version
of the staff officers armband introduced in February, 1916. The
first version introduced 1915 did not carry the initials RFC.
The lower left photo is taken from a
larger photo of the A and C flights of No. 57 Squadron. This
observer apparently is wearing the same armband on his right arm,
possibly to indicate an officer-of-the-day assignment. In
the center photograph, a flying officer with the RAF in Canada
wears a Provost Marshal's armband of similar design but different
initials. The wearer in the right photo is Padre Keymer of
No. 40 Squadron in the spring of 1918.