Horseshoe shaped pin with rhinestones is 1-1/8" tall and rest are to scale. All show either the expo trademark or a building. Two of the pins have enamel accents and the one in rwb enamel is particularly nice. Another unusual piece is 1" square with logo of embossed foil and metal back has pair of tabs holding small ribbon reading "Open" although bit of the "N" is cut off. Three pieces have damage. One of these is with the pennant top which probably had something applied. Another is an oval showing building and this has no pin on the back. Another is oval with keystone shaped logo design at center which has lost most its silver luster. The other eight pieces are Exc. to Mint. Numerous items we've not seen before.