Art's master-piece, or, A companion for the ingenious of either sex ... by C.K.

Of Silver Dust, Brass Dust, Green Gold, Dirty Gold, Coppers, Pow∣der, Tin, &c.

The Silver Dust, the best is brought from beyond the Seas, and is known from the Coun∣terfeit by being squeezed be∣tween your Finger and Thumb, giving a glorious Lustre, as in∣deed it does in the Work.

Brass Dust, by Artists called Dust Gold, is the best made in Germany, the best is of a fine bright colour, nearest resem∣bling Gold, try it as the Silver Dust; as for the course sort, though it will work pretty well with Gold Size, yet it will not do so with Gum-water.

Green Gold, a corrupt Mettal so called, is very good in this

Work, for casting a fading Green colour.

Dirty Gold is a corrupt Me∣tal, casting a dark, dull, though Silverish colour, bearing pretty well a resemblance to dirty dros∣sy Gold.

Coppers are three sorts, Na∣tural, Adulterate and Artificial; as for the Natural, being clean∣sed it may be ground without any mixture.

The Adulterate is most fit for a Ground, and serves com∣monly to lay other Metals on, as in hetching or heightening Gold or Silver on; but the Ar∣tificial is of a higher and brigh∣ter colour than either: There are also used in this Art, those called Speckles of Copper Gold and Silver, and divers other co∣lours differing in fineness, which may be worked as the Artist fancies, either on the outsides

of Boxes or Drawers, or on Mouldings, and may be pur∣chased ready done.