Note 29 — Chapter IX · (continued 2)
Reading edition
See "Assaying and Hall-marking at the Chester Assay Office," by W.F. Lowe. Journ. Soc. Chem. Industry, Sept. 1889.
Reading edition
See "Assaying and Hall-marking at the Chester Assay Office," by W.F. Lowe. Journ. Soc. Chem. Industry, Sept. 1889.