As a rare coin collector, washed pieces are worth far, far, less.. cleaning coins makes them shiny but also wears off important details. I can't help but be slightly mortified by the mass-cleaning of coins.. >Along with the coins, the burnisher is filled with water, bird shot to knock the dirt off, and a healthy pour of 20 Mule Team Borax soap. After three hours of swishing the coins around, Holsen uses a metal ice s…
All my numismatic spidey sense twitched when I read the story. I remember one of the first things I learned was that counter to instincts, cleaning coins with manual abrasives is bad bad bad.