Thanks Graeme,
I think thats it, a Curtis A-12
I did further research and discovered that the 3rd Attack Group moved to its new permanent base at Barksdale Field in Louisiana in February of 1935. The A-12s of the 3rd Attack Group began to be replaced by Northrop A-17s in the middle of 1936. They were then dispersed to various training units. 15 of the 3rd Group's A-12s were sent to Wheeler Field in Hawaii in 1936. They were joined by six more A-12s in 1937, including 33-213 which had been at Edgewood and five from Maxwell Field. They were assigned to the 26th Attack Squadron which was part of the 18th Composite Group. The A-12s were transferred to Hickam Field in 1940. Nine A-12s were still there when Pearl Harbor was attacked on December 7, 1941. However, they did not participate in any combat. One of the nine Pearl Harbor-based A-12s was scrapped in May of 1942, and 8 were returned to the mainland where they were used as instructional airframes.
DaveT