Scientific American, Vol. 6, No. 25 (June 1862)
A weekly issue of Scientific American from June 1862, published in New York for inventors, mechanics, and patent applicants. Wood engravings show sectioned machinery and hardware in fine parallel-line shading, alongside an eagle-and-flag emblem with pocket watch, a circular trademark seal, and an ornate 'Patent Claims' headpiece over the Patent Office facade.
