https://en.numista.com/catalogue/pieces2788.html
Can someone explain if there is a physical difference between these two, for the year 1920 only please? I know the metal was silver (.925} then silver (.500) but I have one and do not know how to tell - whether it is KM# 813 or KM# 813a number. Is there anything, like lettering or where it points to (between beading), or head size, designer's initials location (like 1926 ME) etc to look out for? Thanks
P.S. The other coin that also changed that year was the sixpence KM# 815 and KM# 815a - luckily the shilling and florin and half crown stopped in 1919 with silver (.925) then the next year was silver (.500).