This precision machinist transfer gauge is constructed from steel and cast metal. The instrument features a heavy, stable base with a precision-ground bottom surface and a V-groove machined into its top edge. A vertical beam with a recessed central channel is mounted to the base. The gauge is equipped with two sliding blocks, each featuring a decorative engine-turned perlage finish on the side faces. The upper block acts as a stationary anchor for a threaded fine-adjustment screw, which allows for precise vertical positioning of the lower block. The lower block includes a horizontal mounting bar for measuring attachments. Both blocks are secured to the beam by knurled metal thumbscrews. A maker mark is vertically stamped into the central channel of the beam reading TERRY in uppercase characters, with a separate character R stamped directly above it.