TAD B2.6 R.11 :מחזי 1 זי נחש‏ : one bronze mirror
See the entire entry for nḥāš, nḥāšā n.m. bronze, copper

TAD B2.6 R.11 :מחזי 1 זי נחש שוה כסף שקל 1 ר 2‏ : one bronze mirror worth 1 and 2/4 shekel of silver
See the entire entry for šwē adj. equal, worth