zSOLD Streamlined DECO Singer VACUUM CLEANER Singer R4D Sold. Thanks again Andrew!! Oh hell yes. Here is a super well preserved example of a very rare 1930's machine. I will be listing some of my collection here on the website in the upcoming weeks so check back!! This model runs GREAT! Features headlamp, brush roller, and retractable cord reel! Singer model R4D. Mouse over images to enlarge image to the right