1. Lansdowne MS 18/47 Reference (shelfmark): Lansdowne MS 18/47 Title: Scope & Content: 47. Wm. Humphrey, Assay Master of the Mint, to the Lord Burghley; of the trial of the crocus of copper, Dec. 9, 1574. Collection Area: Western Manuscripts Languages: English Date Range: 9 Dec 1574 Extent: 1 item