Postby dognose » Wed Dec 18, 2013 1:08 pm
Hi,
Welcome to the Forum.
The 'R' date letter indicates 1959, and the 'U', 1962. Such differences in date letters are not uncommon, it may be because the original owner built up the set year by year, or it may be because they were stock items of the manufacturer, and some pieces lay with them for a few years.
The maker was Poston Products Ltd. of Cambridge Street, Sheffield, who were in business up until 2011.
Trev.