As mentioned above, Sd caps if they have a nmakers label in them will sometimes say by appointment to a particual monarch, in this case it will say to QEII. Some do not so you have to look at other factors, with the peak often being a good way of roughly dating a cap, the shape, the colour and what is under the peak often is quite useful, with fabric the same as on top usually dating from after the start of WWII, earlier caps mostly have different type of fabric and colour of green under than they do on top. The badges and buttons or more precisely the form of crown on them ie king or queens crown usually gives you a pre or post 1953 date, and sometimes the design changes as the regiment or corps changes its name or gets amalgamated, with for instance the ASC becoming the RASC in circa 1919 so the badges and buttons change and the same applies to many regiment such as the Welsh becoming the Royal Regiment of Wales in 1969 so any cap with the Welsh on the badge and buttons should pre date 1969, also the REME changed badges quite quickly in 42 and then again in 47 and then changed crowns in 53 etc..... Another factor is the type of lining or other makers details that change over time and a good one that Oli shows in his book is the Crown welt seam which is no longer used after 1970. As with any militaria, they might at first glance all look the same, but studying them can give a lot of clues to dating them and hopefully make them more interesting to look at and to collect.
its just an opinion.
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by ruddersrangers44
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