(Andrew Jones, Sydney, Australia).

Road frame. Wrapover seat stays (not fluted). Elaborate lugwork. Replacement forks, rear dropouts, gear lever bosses and bottle cage bosses all probably added later.

I acquired the bike from a relative of it’s original owner who brought to Australia with him from the UK.  It’s 54 x 56cm C-C so seat tube would be ~55 C-T.