I recently restored a  Singer sewing machine, Model 201-2.  I was lucky enough to find it in an antique shop for the bargain price of $25. Armed with the serial number, I contacted the Singer Manufacturing Company Customer Service at 800-877-7762 and determined that this machine was born on September 3, 1952 at the Elizabethport plant. Since it was in an ugly cabinet (blonde wood with peeling veneer),  I began a search for an appropriate replacement cabinet.  In early November, I found the perfect cabinet at an auction.  It has lovely burled walnut inlays on the doors. For a bid of $5, I took a chance that the model 201 would fit in the cabinet.  Upon examining it closely, I discovered a serial number and realized that it was an original Singer cabinet. Eureka! A bit of research at ISMACS, the International Sewing Machine Collectors' Society web site, revealed that the cabinet was a Singer No. 47, which was shipped with the Model 15-91 machine. As luck has it, the Model 15-91 machine has the same size head as the Model 201.