Spent half of today in a frustrating search to locate a site, only to come up empty handed. As a fallback, on the way home there was a site I had visited once before with not much luck, though something beckoned me to give it one more shot, really had nothing to lose. I thought the site was quite young, maybe 50's-60's, though some of the finds coming out of the ground suggested otherwise, espeically the large Martini Henry projectiles. Plenty more evidence started to show up, including pocket watch & kerosene lamp parts, a 1925-26 dog tag, Spear and Jackson Sheffield saw medallion, and plenty of thick older glass.
One salvagable small bottle reads " Dr Williams Pink Pills for Pale Face", a supposed miraculous cure for multiple ailments.
Also found was the front badge of a "Standard" motor car, not sure what model.
The best find of the day, albeit a very corroded one, was a bronze South Australian Centenary 1836-1936 commemorative medallion. On one face is Surveyor General William Light and on the other is HMS Buffalo, they were issued to school children in 1936. It took several rounds of citric acid to have any chance of making an ID on the medallion, have even exposed some gold gilt on it despite the horrid oxidation.
Not many coins surfaced (BB's, 1957 penny & 1942 hp), at least not at this stage considering I only did a rough run over the site to check the extent of finds, will definitely be back for another look.