Made in the late 60s at Flinders Lane in Melbourne, Australia by well known fashion designer Thomas Wardle.
Nice find Mark! I just found my own '60s Thomas Wardle in my collection, a quick search found this old post. I love your suede pinafore, it's a beauty. Mine is a very small size, especially around the hips which were too small for my slimmest mannequin. XXSSW is roughly equivalent to a modern Australian 4 (US 0) I hired it to the film 'Predestination' (2014), you can see it fourth from the left in this photo. I collect Australian fashion and Thomas Wardle was one of the few designers I didn't have represented so it's exciting to find this '60s example that I didn't even know I had!