I recently learned of dowmetal, an alloy that is about 90% magnesium and made by Dow. I went looking and it looks like they made a handful of medals/tokens/scrip with the material.
I managed to get a hold of some of the transit fare tokens and am curious about two things: when were they used, and why do mine have counterstamps on them? Four of mine have dots (I think) and the other two have X's stamped on them.
*** And if anybody knows where I can get more, please share. Mine are nicely corroded, because of course they're magnesium.
