1737
YORK
1800
SHEFFIELD
1778
The Birmingham Assay Office came into being in 1773 under the same Act as that governing Sheffield (13 George III, Cap. 52). The marks are an Anchor (the Town Mark), a Lion passant, Date Letter, Maker's initials, and the Duty Mark of the sovereign's head from 1776.
Scottish marks come under another series of Acts and are a field to themselves. Besides Edinburgh and Glasgow marks the number of Scottish marks is legion (Sterling, Perth, Inverness, Dundee, Aberdeen, Banff, etc.).
Edinburgh used the Standard mark of the Thistle after 1759 in place of the Lion passant found on English silver. The hall mark is a Castle with three towers. The alphabets of Date Letters A-Z and the Maker's initials have been regularly used since the fifteenth century. The Duty Mark of the sovereign's head was added in 1784. It was also formerly usual to add the Assay master's initials.