Martinsyde ADC.1 (F.4 racer),  registered <i>G-EBKL</i> from  11/24 until 1/30, photographed in early 1925. <a href="//commons.wikimedia.org/w/index.php?title=Armstrong_Siddeley_Jaguar_III&amp;action=edit&amp;redlink=1" class="new" title="Armstrong Siddeley Jaguar III (page does not exist)">Armstrong Siddeley Jaguar III</a>.
TSRL
British Flight Testing (Tim Mason)