poison rings

When I bought my poison ring (I think I mentioned earlier that I do own one), I was browsing around at an antique show. While I stood admiring an ornately chased Victorian ring, the dealer came over smiling. "What makes that one so good," she said, "is that it's a poison ring." Good is, perhaps, not the best word to describe such an elegantly dangerous device. And yet, I was immediately fascinated. I'd always imagined poison rings as rather obvious, an enormous golden blob like thing on the fingers of Lucretia Borgia (although, apparently, her brothers were far more murderous).This was dainty…