Look for the "Singer" logo to verify that the cabinet is a Singer; the logo takes three primary forms: the word "Singer," a decorative "S" with scroll-work, and an "S" bearing the text "Singer Sewing Machines" in front of a seamstress.
Check for a manufacturer's label, model number or year on the underside, inside or back of the cabinet; this information may be printed on a paper label. Look for this info on the accompanying sewing machine if it isn't found on the cabinet.
Look up the model number and year on the Singer or International Sewing Machine Collectors' Society website (ismacs.net).
Contact Singer consumer affairs for assistance identifying the piece. Take photographs and note salient features such as construction material, color and the style of door pull so that you can provide accurate information to speed up the process. Contact Singer at 1-800-4-Singer or TalkToUs@SingerCo.com.