I’ve been thumbing through old magazines, looking for advertisements to possibly include in my upcoming book, and came across an ad in this issue of The American Magazine, from December, 1923:It’s an ad for LEAD PAINT on page 195.It’s too… Read More
During the first part of the 20th century, detectives used a grey powder to dust for fingerprints at a crime scene. It was a mixture of chalk and mercury. Many suffered chronic mercury poisoning.