Probably (read down further what different watchers say) an old Imperial? type British Army uniform Button. Has what looks like a Lion and a unicorn on each side of a shield or crest, with a crown on top of that and a lion on top of that. Has a bit of probably Latin writing in there but can not make it out. On the back of the button it says A A & Sons Aligarh. Not a collector or grader so is sold as is, but to me it looks good enough for an old thing, probably early 1900s ?? Helpful watcher says ... Post Victorian "all Ranks Button, put into common service in th' 1880's but as this has 'George crown' it must be post 1902 ... (thanks helpful watcher) Another helpful watcher says..."SHES WW11.... HAVE A LOOK AT BRITISH BUTTONS ON GOOGLE HALF WAY DOWN ON RIGHT..CHEERS" fraydknot (thanks helpful watcher. Measures approx 24mm across. Thanks. refN15492163K