As far as I can tell, no one on the Internet has written about this in any definitive way …so here goes. The first tab collars for shirts were semi-soft and completely detachable, and appeared on the scene at the end of World War I. Edward, Britain's Prince of Wales, was famously seen wearing one in winter 1919 on a North American visit. (See photo below.) They were made in every shirting fabric except silk. By the later 1920s, most tab collars sold were soft (though certainly starchable), and were permanently attached to shirts. Surprisingly, they were equipped to hold removable collar stays. Both the detachable and the permanently attached tab collars were fastened at the neck by a removable collarband stud button. (See the brass one in the photos below.) Note how the collar’s edges meet at a nearly 90 degree angle ... not a spear point in sight. Note, too, how both tabs have buttonholes to accommodate the brass stud button. Here is an example from the 1930s: In America, tab collars fell out of favor in the 1940s, but were revived around 1960. The collar’s dimensions and silhouette were essentially the same, but two new details appeared: a permanently attached button on the collarband’s front opening, and metal snap buttons on the tabs. Also, the tab collar was now available in a rounded “club” or “golf” version. (See photo below of the Beatles.) Lyndon B. Johnson was an avid tab collar wearer.