Siphon coins make historic gift

Numbered limited edition in silver nearly sold outYUMA, ARIZONA - Yuma is celebrating Arizona's Centennial in many ways, but its promotion of a commemorative coin has caused the most stir outside the area.The Yuma Crossing National Heritage Area minted a limited edition of 100 silver medallions, featuring the Arizona Centennial on one side and an image of the Yuma Siphon, which also opened in 1912 and brought irrigation water underneath the Colorado River to 50,000 acres of rich Yuma farmland.The Siphon commemoration was suggested by Bruce Gwynn, whose grandfather, E.F. Sanguinetti, had