These range in size from 7/16" to 11/16". Most have a threaded post and cap reverse except for the "Milwaukee Road 20 Safety Award" which has a post and clutch. There is also a "The Milwaukee Road" stud. Other items include "Wabash Ashlar Club" with die-cut image of train engine and "Wabash Safety Service." Another item is "N.Y. Ontario & Western Ry. Veterans Association 1924." This has nice enamel work. Another enamel is "New England Railroad Lines Veteran Association." Another enamel is "KCS Lines L&A" with an arrow style logo. One in brass is "Junior Safety Worker/Buffalo Rochester And Pittsburgh Ry." The one piece in plastic is "Kansas City Southern Lines." All items display pretty much Mint as made.