Yesterday I found a ziploc sandwich bag full of what looks like grandma's collection of old costume jewellery. I know enough to look for markings for real gold, silver, etc. Unfortunately none of them bore those marks. But very little of it will stick to a magnet, so my question is how do I figure out what its all made of. I'm guessing aluminum or brass, just by the weight of items, but is there a way to tell the two apart?
The only really good (I hope) goody I found was an old (non-working) Waltham pocket watch. I've looked them up and they sell for a good price in working condition, so I'm going to take it to the local jeweller to see cost of fix/appraisal.
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