Sizes are 7/8" to 2.5". There are thirteen buttons, two aluminum tokens, with the one in the top row a very early "Friendly Service", one brass token from 1954, one brass figural stick pin and three plastic poker chips each reading on the back "Reddy Kilowatt/The Mighty Atom." Those with a little age include the first large button used to identify a person at a convention. Couple of small light age dots around the bottom edge. Also with a little age is row three, numbers three and five and row four, number one. While the group includes some of the commonly seen designs there are also rarities. An overall Exc. group to form a collection or build upon. Many years in the making.