This is a Pre-Columbian MAYAN Seed Pot / Whistle from Mexico, 300 - 900 A.D. It has 3 holes. It measures about 2 1/2" X 2 3/8" X 2 1/2" ( 6.4 cm X 6.0 cm X 6.4 cm ).
This is a Pre-Columbian AZTEC Coiled Shell from Mexico, 1300 - 1500 A.D. This item was found at the Aztec site of Xico by Dr Allen Heflin. It measures about 1 1/2" X 2 3/4" X 1" ( 3.8 cm X 7.0 cm X 2.6 cm ).
This is a Pre-Columbian VALDIVIA Carved Volcanic Stone Plate from Ecuador, 1100 - 300 B.C. It measures about 15 1/4" X 15 1/2" X 3" ( 38.9 cm X 39.5 cm X 7.7 cm ). It weighs about 17 Lbs ( 7.7 kg ).