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Western Electric RA1142
This is a Western Electric multi-pattern microphone with an unknown date of manufacture.
Western Electric 618A/E99098
This is a Western Electric dynamic/moving coil microphone with a "shotgun" polar response. Its date of manufacture is unknown.
Westinghouse, Model Unknown
This is a Westinghouse carbon microphone manufactured in 1921.
Westinghouse, Model Unknown
This is a Westinghouse condenser microphone with an unknown polar response that was manufactured in 1925.
Button, “Let Mother Vote," Whitehead & Hoag Co., ca. 1910-1911
Button in support of the women's rights movement
Button, "Votes for Women," Whitehead & Hoag Co., 1915
Button in support of the women's rights movement
Pin, "Votes for Women; Victory 1915," Whitehead & Hoag Co., 1915
Button in support of the women's rights movement; Excelsior coat of arms in center
Report, The Gold Placers of the Vicinity of Dahlonega, Georgia, William P. Blake, 1859
Report by William P. Blake and Charles T. Jackson of gold placers near Dahlonega for the Yahoola River and Cane Creek Hydraulic Hose Mining Company
Illustrations, Figures 18 & 19: "Hollow gum" and "Inclined Plane", Essay on the Georgia Gold Mines, William Phillips, 1833
Illustrations showing the new mining technologies of the early 1830s. The “hollow gum” (fig. 18) and inclined plane (fig. 19) allowed larger amounts of gravel to be washed while catching the particles of gold.
Photograph, Hydraulic Mining in the Decomposed Auriferous Slates, with their Vein Content, at the Singleton Mine, Dahlonega, Georgia, in A Preliminary Report on a Part of the Gold Deposits of Georgia, 1896
Photograph showing the practice of hydraulic mining in Dahlonega, GA, though decades after the height of the Georgia Gold Rush