1910 Quarter Eagle ($2.50 gold coin) and page from book noting its incuse design.

Left: 1883 400th Anniversary of Reformation 48mm medal featuring Martin Luther.
Right: 1930 German Graf Zeppelin commemorative 3 mark coin. The owner also has a 5-mark Zeppelin coin and Zeppelin stamps (Scott #C13-18), and reports that these items make a nice exhibit at shows!

Left: York County, Pa. / Seven Valleys 75th anniversary medal (1892-1967).
Right: U.S. Mint 1964-2014 gold commemorative Kennedy half dollar.

"Nixon Penny" ... getting smaller ... inflation souvenir!