Always good to get a response to questions about beer labels. Thank you Steve for the information on the Harman’s differences. Images would be most welcome. Maybe other members/visitors to the site can help on any others. Our next spot the difference features Duncan Gilmour’s Extra Stout. No help on this, but I have thought for many years that the label on the left was the earlier issue, but reference to Richard Percival’s Brewery Tray website dates this style to the 1920s, which is a good 25 years before I believed it was introduced. Perhaps the label on the left is the post-war issue. Comments expected.