A very good silver mug Birmingham 1926 it has the maker mark 'L C Ltd' in three conjoined circles which we understand is j collier ltd the mug is in good condition and has some of the best engraving I have seen the bottom is just over 2.5" in diameter and the top is 2.25" in diameter  it is just over 3.5" high all in all a very good mug   . It weighs 111 g