Artifact Details Title ATT Pin Catalog Number 102673538 Type Physical object Description Pin consists of rectangular yellow and gold pin with text "ISDN"; "V5" in logo; "5ESS SWITCH" on the front. On the back is embossed text "(copyright) 1987 AT&T / Taiwan". Manufacturer AT&T Place Manufactured Taiwan Dimensions overall: 3/8 in x 5/8 in x 7/8 in Category Ephemera/Lapel pin Credit Gift of Mariou Kenworthy Lot Number X3336.2006