Has anyone ever come across purple crystals like these before? The coin was from a dealers junk box, (2 for £5,) The scans don't really do it justice, they don't show the large L below the
red dot on the
reverse, that and it's thickness has me thinking it's alexandrian. There is also some fairly solid lettering beneath the purple on the
obverse.
So far I've boiled in DW and toothbrushed lightly. This brought out the purple! Under magnification the crystals are very well stuck on, Is DW likely to loosen them? There's some interesting chemistry here if nothing else.
Regards,
LB
