Possibly a pre 1930s model. Spong founded the company in 1856 making economic household utensils or domestic machineryUsed in the Kiewa Valley by a householder.Heavy black metal with red timber handle. Edges painted gold. Clamp at one end and a 'bell shaped' outlet at the other. There are 3 feet for standing the grinder up and bolting it onto a surface.'Founded 1856 / Spong / Made in England' - black print on golden oval shape. 'Spong & Co. Ltd' 'London' embossed either side and painted gold.spong coffee grinder, household utensil