Reply by Lee Barker

I’ve done very little with the stuff, but in that experience found that the ever-popular vinegar and iron mixture makes the raw cut surfaces quite convincingly gray.

Kinidly,

Lee

-- "...in his brain, which is as dry as the remainder biscuit after a voyage, he hath strange places cramm'd with observation, the which he vents in mangled forms." --Shakespeare, "As You Like It"