Artifact Details Title IPX overlay Catalog Number 102718616 Type Physical object Description The object has six sheets. The sheets are wire bound. The middle four sheets have printing on both sides and have tabs with numbers. The numbering scheme is unusual. Manufacturer Ideographix, Inc. Dimensions overall: 1/4 in x 7 1/4 in x 12 1/2 in Category Ephemera/other Collection Title Chan H. Yeh collection of Ideographix materials Credit Gift of Chan Yeh Lot Number X6819.2013