Metal, enamel, glass
Overall: 10 x 11 x 14 1/4 in. ( 25.4 x 27.9 x 36.2 cm )
Ten-key adding machine in black enameled metal casing; windows in front and side.
stamped: on metal plate on top of machine: "No 15096 / STANDARD ADDING MACHINE Co / St Louis Mo U.S.A. / PATENTED / MAR. 3RD 1891 / MAR. 27TH 1894 / OTHER PATENTS PENDING" printed: on front of machine: "Standard / Model E" printed: in oval cartouche on top of machine: "PATENTED / MARCH 3rd 1891 / MARCH 27th 1894 / OCTOBER 8th 1901 / OTHER PATENTS PENDING" printed: in red banners surrounding cartouche: "ACCURACY / SUPREMACY"
Due to ongoing research, information about this object is subject to change.