September 16th and 17th Hawkesbury Showground Clarendon NSW,
Clarendon Kenworth Klassic Truck Show, Model and Hobby Show, Sydney Antique Machinery Show, LVR Steam train rides from Richmond to Mulgrave. Civilian and Military displays and vehicles. Theme this year is 100 Years of the Fordson Tractor and 150 Years of Lister.
Sydney Scale Model Show will have representatives there.
https://www.facebook.com/Sydney-Scale-Model-Show-310333805792166/
AMMS Sydney will have a display. Volunteers are welcome to assist in manning the stand. Great opportunity to get a few hours of modelling done or talking to interested vistors to the stand.