I have a Humen sewing machine in the original stand with the chair. From what I have found the parts were made in China not Japan as most Singer clones were and the machine was assembled by Humen Sewing Machine Company in Edmonton, Alberta. It looks exactly like the Singer 15-91. From what I can tell Humen Sewing Machine Company was in Edmonton after the war until about 1954...cannot find anything on them later. Still looking for more information. It should sew leather with the right needle.