Pan-American Exposition of 1901, THE SINGER MANUFACTURING CO., colorful scenic illus of Niagara Falls, on clean pre-printed envelope also offering 1000 worldwide stamps for 25¢ ??? (Image)

Est. 50

STERLING DEBENTURE CORPORATION, New York, text ads featuring the Telepost on both sides of unused UX19 1¢ black postal card, with reverse in red & black (Image)

Est. 25

1921, unnamed company offering Grab Bag Assortments, with illus of men & women around a table of gifts, on UY9m posted from City Hall Sta, NY Nov 28, 1921, VF (Image)

Est. 20

READY-JELL MFG. CO, Troy, NY, illus dish with Ready-Jell and box, all in red on UX27, 1¢ green postal card, full message side sales text with headline in red, VF (Image)

Est. 30