This page contains assorted information related to the research interests of our members. Unless directed otherwise, enquiries should be emailed to with the member's name in the subject line. 1. Dave Spethman OAM: Dave has compiled detailed records of Australian guns over many years, and has decided to publish them. 2. Mike McLean: Mike recently created the Wikipedia article Gas-checks in British RML heavy guns. These gas-checks are the forerunners of the driving bands used in breech loading artillery.