PHOTOGRAPH: Gyro switch [on a stabilizer] shown in the 'off' position. Sign on the switch reads "must not be switched on until fins are fully extended". Manufacturers' emblem/badge "SARO Saunders-Roe (Angelsey) Ltd., 1830" is also fixed in the surround of the switch.
STAMP: no. 873/6. SARO (Anglesey) Ltd.