But nearly all this primitive decoration received a rude shock of displacement when the Mexican colonist came upon the scene, with his iron, copper, and silver adornments glittering in the sunlight. From coveting, the Navaho took to possessing by fair means or foul. He would barter his skins or other native possessions for the precious metals, using brass and copper for the making of ornaments, and iron for tipping his arrows. Silver, however, has never lost its charm for him. The Mexican vaquero, trapped out in the glittering metal, has ever been his ideal of personal adornment, and he retains it to this day. Silver is the only coin they care to accept, though the better educated now know the superior value of gold. There are some clever, skilful silversmiths among them--peshlikais, as they call themselves. In crucibles of their own manufacture they melt the precious metal, using a crude and primitive blast furnace, with charcoal as fuel, and the molten silver is then poured into moulds which they have shaped out of sandstone or other rock. They understand the art of uniting two pieces of metal together, for many of their ornaments are hollow and globular, originally made in two parts and then joined. Scarcely a man or woman of any standing in the tribe does not possess a home-manufactured necklace of silver beads or articles of some design,--a finger ring or two, one or more bracelets, and sometimes a pair of ear pendants. Above all they covet the belt with large silver disks. Each of these disks is made of two or more silver dollars, melted and run into a flat mould. This thick sheet is then hammered out to the required size and shape, which is either oval or circular, and chased with small tools. The border is generally filleted and the edges scalloped. When finished each disk has a value of twice its original cost in coin silver. Sometimes a belt will contain eight or nine disks and a buckle, which cannot be bought for less than thirty-six to forty dollars. This, too, is actual cost price. If the Navaho doesn't care to part with it, an extra five or ten dollars, or even more, is required to induce him to let it go. In addition to these objects of personal adornment, many of the more wealthy have silver bridles. The bridle itself is made of leather or woven horsehair, and then the silver strips and bars, artistically chased and decorated, are placed and fastened on the headstall. Silver buttons of pretty and tasty design are commonly used on gaiters and moccasins. These are made from beaten coins, twenty-five and fifty-cent pieces, and the obverse side is often found in its original state as stamped in the United States or Mexican mint.