I think I'd go with Avro 500 as well..possibly a Duigan varient if there's any Australian connection.
https://en.wikipedia.org/wiki/Avro_5...e:Avro_500.jpg
https://www.worthpoint.com/worthoped...-404-219742755
Credits to Wikipedia & Worth Point
Last edited by clareprop; 22nd Aug 2020 at 06:45.