ScientificAmerican1877-09-15.jpg Heinz 57 Food Products -1925AThumbnailsHeinz 57 Food Products -1925AThumbnailsHeinz 57 Food Products -1925AThumbnailsHeinz 57 Food Products -1925AThumbnailsHeinz 57 Food Products -1925AThumbnails
Burr's improved method of compressing cotton.



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner