Revell M4 Sherman Tank, 7851 factory sample.  This kit is unbuilt, composed of several sprues of different mold colors.  This kit includes instructions sheet, factory stamped "FILE COPY".  Kit is in a Revell 85-4271 1959 Cadillac box.  Underside of box lid has a Revell Approved Sample, Engineering Department interal sticker.  Box shows little wear, bright, clean, square and solid.