SOUTHWESTERN STYLE Nothing says Southwestern style like a classic concho crafted by Rick Martinez. This vintage bolo features a bold sterling silver concho slide embellished with intricate stampwork patterns and a single turquoise stone. The cord is a traditional braided leather with sterling silver aiguillettes. A chic statement piece for a guy or gal! Rick Martinez (Navajo). Retro style, Mark : R. Martinez (script, with NAVAJO) Navajo silversmith Rick Martinez is a talented artist practicing his craft on the New Mexico Reservation. His brother Calvin Martinez taught him silver-smithing and he has been prolific for the past twenty years. Martinez works in sterling silver, high-end turquoise, coral, & gemstones. His old pawn style jewelry was heavily influenced by his cousin, the late Kirk Smith.