provenance:Estate of Ann Landberg, Seattle, WashingtonAnn and Dr. Landberg collected Asian art from specialized dealers in New York and San Francisco starting in the 1950’s. They stopped collecting when Dr. Landberg passed away in 1970. measurements:Length: hilt 2 inches , first spear head 7 1/4 inches, second spear head 8 1/4 inches, third spear head 7 1/2 inches, and lance head 6 1/2 inches weight:hilt 34 grams , first spear head 209 grams, second spear head 286 grams, third spear head 191 grams, and lance head 153 grams .