Mr. _Walberger_ of _Oxford_ uses another way. He makes such an Instrument as is described in _Plate_ 10. at H, which we will, for distinction sake, call the _Joynt-Flat-Gage_. This Instrument consists of two Cheeks about nine Inches long, as at b, and are fastned together at one end, as the Legs of a _Carpenter_’s Joynt-Rule are in the Centre, as at _c_, but with a very strong Joynt; upon which Centre, or Joynt, the Legs move wider, or closer together, as occasion requires. Each Leg is about an Inch and a quarter broad, and an Inch and three quarters deep; _viz._ so deep as the Shank of the _Punch_ is long. At the farther end of the Shank b (as at _d_) is let in an Iron Pin, with an Head at the farther end, and a square Shank, to reach almost through a square Hole in the Shank b, that it twists not about; and at the end of that Square, a round Pin, with a Male-Screw made on it, long enough to reach through the Shank a, and about two Inches longer, as at _e_; upon which Male-Screw is fitted a Nut with two Ears, which hath a Female-Screw in it, that draws and holds the Legs together, as occasion requires a bigger or less _Punch_ to be held in a proper Hole. Through each of the adjoyning Insides of the Legs are made, from the Upper to the Lower Side, six, seven, or eight Semi-Circular Holes (or more or less, according to discretion) exactly Perpendicular to the upper and under Sides of each Leg, marked _a a a a_, _b b b b_. Each of these Semicircular Holes is, when joyned to its Match, on the other Leg to make a Circular Hole; and therefore must be made on each Leg, at an equal distance from the Centre. These Holes are not all of an equal Size, but different Sizes: Those towards the Centre smallest, _viz._ so small, that the _Punch_ for the smallest Bodied Letters may be pinched fast in them; and the biggest Holes big enough to contain, pinch and hold fast the _Punches_ for the great Bodied Letters. The upper and under-sides of this _Joynt-Flat-Gage_ is Faced with an Iron Plate, about the thickness of an Half Crown, whose outer Superficies are both made exactly Flat and Smooth. When he uses it, he chuses an Hole to fit the Size of the _Punch_; and putting the Shank of the _Punch_ into that Hole, Sinks it down so low, till the Face of the _Punch_, stands just Level, or rather, above the Face of the _Joynt-Flat-Gage_: Then with a piece of an Hone, wet in Water, rubs upon the Face of the _Punch_, till he have wrought off the Scurf. At last, with a Stick and Dry _Putty_, Polishes it. I like my own way better than either of the former: For, to take off the Scurf with Small Files spoils the Files; the Face of the _Punch_ being Hard, and the Scurf yet Harder: And besides, endangers the wronging the Face of the _Punch_.