cast in silvered bell metal with moulded rim and shoulder, inscribed to front with a Crown and A.M. 1940, further stamped ATW with a broad military arrow to top
29cm high

Station or 'scramble' bells, such as this example, would have been used on British airfields by the RAF during World War II, where ringing the bell would signal the threat of incoming enemy aircraft.

The dates on Air Ministry bells relate to the commissioning date of the aerodrome that the bell is dedicated to.