Smallest is 1.25" and largest is 1.75". All but the one union dues button includes a serial number. Group includes North Carolina 1942/43; Colorado 1943; Illinois 1922 in brass; Kansas 1945; Kansas undated in brass; a pair of undated for Ohio with the first having a varnish finish applied to it; next four are for Minnesota 1946, 1947 (two and first has small bumps from reverse bar pin), 1955. Next two are from Oregon 1949 and 1950. Some age spotting on both but showing very little on the second. Next is 1.25" 1959 Chauffeur's union dues button, although badly stained. The last six buttons are for "City of Toledo/Taxi Cab/Chauffeur." These are for years 1954, 1955, 1959 through 1962. The 1961 shows some edge soil but vast majority of this has been removed leaving just a few pinpoint dots. Overall vast majority of group is extremely clean.