Yachtsman (Yachter, Yachtswoman): Another name for a folding rigging or sailors knife, especially small stainless steel handles versions.

Yellowhorse, Brian:  A Navajo knife customizer who specializes in channel-inlay handles on fixed and folding knives. The handles are normally made with natural precious and semi-precious stones, especially those commonly used in Native American Artwork and jewelry.  Additionally blades, bolsters and springs are extensively filed, worked and engraved. Brian also specializes in “Native Steel” blade work. He is the son of David Yellowhorse.

Yellowhorse, David: A Navajo knife customizer who specializes in channel-inlay handles on fixed and folding knives. He also customizes fire arms and just about anything that a customer could ask for. His medium normally consists of precious and semi-precious stones and metals common to Native American Jewelry (Turquoise, Bloodstone, Black Jet, Silver, etc.). Aside from his channel inlay, David is a master in steel engraving and  file work.  Like his son, he works with factory and hand-made knives.

Yellow Turquoise:  A misnomer for yellow jasper.