This is a mechanical pencil sharpener made by the Automatic Pencil Sharpener Co., Division of Spengler-Loomis Mfg. of Chicago. The style name has worn off of the black & nickel plated steel shavings receptacle. The stand is cast steel with a turned wood handle. The twin cutters sharpened the pencil in the photos. It has two screw holes for mounting on a desk, shelf or wall; the screws are not included. It is 4 1/8" tall x 4 1/4" from handle end to the front of the pencil receptacle & 2 1/2" at the widest point. The Automatic Pencil Sharpener Co., was founded & began producing sharpeners around 1907. Pencil Sharpener Screw Mount ~ Automatic Division Of Spengler Loomis Mfg. Chicago Retro Desk Vintage Office