Ah, that's how my hands look after searching through bags of silver, the air has this light metallic smell from all the coins.
Speaking of dirt...does anyone else wear a dust mask when opening rolls? I get mightily congested if I don't. The Loomis/Brinks/Garda, etc. rolls tend to slough off all sorts of particles when unwrapped.
Uggh, that reminds me of a hotel in Donbass that I refused to stay in because we looked at the rooms and they were permeated with coal black.