Casebooks

Take a pound of copper plates thin beaten & put it over the fyer vuntill it chang col{ore} & looke blewe & then

Take horse hoofe or {sic} buls hoofe s w burnt bat beate it to poud^r salt peter ℥iij Arsnick ℥iij bolearmoniak halfe a pounde poudered boyle all togeath^r & Annoynt & batter yr copper {rou}nd about thicke. & this will blanch it to looke white like silver. then burne it in the fyer vntill it looke blacke. then w^th quicksil{ver} mortifyed & vinegar dippe a scrape brush made {w^th} fyer & wash it vntill it looke white Samps{on}