What is the oldest theatre in Perth?

Blimey I still use and advocate cleat & sash toggle lines, for joining flats up. Heaven forbid even thinking of using nails, the only thing I would use them for is as a removable drop pin in hinges on frrench braces. Even with a long standing box sets,  in my opinion, securing with cleat serpentine lacing toggle lines, is still a better method causing less damage, making bump in/out much easier & faster.
Size these days has been replaced by watered down plastic paint. Which is  cheaply available now working  well in shrinking & sealing the unbleached calico skin. However either starch or the diluted pva suggested works well,  as an elcheapo alternative.