1950s MADAM X & SWAMI Napkin Holder Flyer

Manufactured by F.E. Erickson Co.; front has a large black and white photograph of the MADAM X napkin holder/fortune card countertop machine; small black and white photo of the SWAMI napkin holder/fortune card countertop machine is on the back; there's some sales text about each machine by each photo; this flyer is designed as a mailer, and the perforated, mail-away postcard is still in place; very good/excellent condition with some minor staining visible only on the back in the lower right corner and at the lower right edge