J7178 in Egypt for tropical trials. Photo from: Imperial War Museums

This aircraft was involved in a forced landing in Lincolnshire in June 1933. This may have been the end of J9215, a two-seater, because Siskins had been withdrawn from operational use the year before. Photo from: Imperial War Museums

Siskin fighters lined up at Hendon. First row, J8950, J8664, J8662, J8056, J8666, J8668, J8670 of No 29 Sqn. In second row is J8836 of No 43 Sqn. On No 29 Sqn's previous equipment, the Gloster Grebe, the squadron marking was four crosses. On the Siskin this was shortened to three. Thus the origin of this marking is not a mispaint of a Roman numeral XXIX. Photo from: Imperial War Museums

Used as an instructional airframe during World War 2/ Library and Archives Canada

Left service in 1946. It was an instructional airframe in its later years. Photo from: Library and Archives Canada

Given the name Captain Sir Arthur Whitten Brown not long after this photo. Serial changed to 302 in 1932. Photo from: Library and Archives Canada

Reserialled at some point as 306. Remained with the RCAF until replaced by Hurricanes. Photo from: Library and Archives Canada

Serial changed to 308 in 1932. Left service in 1937. Photo from: Library and Archives Canada

An initial two Siskin fighters arrived in Canada in January 1926 for testing at then RCAF Station High River, which is not High River's current CEN4 airfield. According to Bill Walker, J7759 became RCAF serial 10 and then 305 in 1929. Photo from: Canada Aviation Museum