15/16" celluloid with a collet-less concave tin back holding a vertical pin. Pin has oxidized surface but fully intact. Cello has tiny bulge on extreme edge at 3 o'clock. Edges show a deeper red color than the front which now has rose gold tone. Tiny darkening around rim and darker area on letters "EN" of primary text " Souvenir * Labor Day" Additional text "1896" with "Labor" beneath worker in apron and holding a tool as he shakes hand of "Capital" man in top coat and hat who holds a cane. Bottom curl states "Copyright." One seen in 49 years.