A SCOTTISH NIELLO-DECORATED PLAID BROOCH UNMARKED, LATE 17TH CENTURY the annular plaid brooch with engraved interlaced bosses and foliate scrolls, scrolling foliate motifs between integral swing pin, engraved cross-hatched detail, the reverse with original initials AMcD MMD and later dated ‘1784’ (75mm across, 2.75oz) Footnote: Literature: For a closely comparable example see ‘Ancient Scottish Weapons’ by James Drummond, plate XLIV.