Homemade 10" Sphere Greaser Tank Sketch - Valve Stem, Gauge, Hose & Nozzle

This is a simple hand-drawn schematic (ballpoint pen sketch) of what appears to be a homemade pressurized grease or fluid dispenser, uploaded to a 1969 Ford Torino gallery under the filename 'greaser 2.jpg'. The drawing shows a spherical tank marked with a diameter dimension of 10 inches. At the top of the sphere, two fittings are labeled: a 'valve stem' (drawn as a small threaded stub, presumably for pressurizing the tank with air) and a 'gauge' (a pressure gauge angled off the top right). The sphere is supported by two 'Legs' extending downward to the ground. Between the legs, a rectangular sight window labeled 'glass' is drawn on the lower body, presumably for checking fluid level. From the bottom of the tank, a flexible 'hose' runs out to the right and terminates in a 'Nozzle' (drawn as a small cone). No part numbers, torque specs, wire colors, fuse data, or vehicle-specific information appear in the document. A reader can learn the general layout and single stated dimension (10-inch sphere) of this shop-made greaser/dispenser tool, but no build instructions, materials, or pressure ratings are given.