Edison in 1902 started to Gold Mould cylinders, this process uses a oversized groove and a large wax master. The master is placed in a vacuum with 2 pieces of gold leaf. High voltage is introduced to the gold leaf in the bell jar, and vaporizes...
Edison in 1902 started to Gold Mould cylinders, this process uses a oversized groove and a large wax master. The master is placed in a vacuum with 2 pieces of gold leaf. High voltage is introduced to the gold leaf in the bell jar, and vaporizes...
Edison in 1902 started to Gold Mould cylinders, this process uses a oversized groove and a large wax master. The master is placed in a vacuum with 2 pieces of gold leaf. High voltage is introduced to the gold leaf in the bell jar, and vaporizes...
Holmes Co. (Miss.) ; Wynne, George D.--Family.;farm life--Mississippi.
George D. Wynne family farm; multiple views. Farm of 642 acres owned and 2500 acres farmed in partnership about five miles northwest of Pickens, MS. Holmes Co. agent W. R. Sullivan assisted with selection of farm family.
Edison in 1902 started to Gold Mould cylinders, this process uses a oversized groove and a large wax master. The master is placed in a vacuum with 2 pieces of gold leaf. High voltage is introduced to the gold leaf in the bell jar, and vaporizes...
Edison in 1902 started to Gold Mould cylinders, this process uses a oversized groove and a large wax master. The master is placed in a vacuum with 2 pieces of gold leaf. High voltage is introduced to the gold leaf in the bell jar, and vaporizes...
Edison in 1902 started to Gold Mould cylinders, this process uses a oversized groove and a large wax master. The master is placed in a vacuum with 2 pieces of gold leaf. High voltage is introduced to the gold leaf in the bell jar, and vaporizes...
Jasper Co. (Miss.) ; Youngblood, C. L.--Family.;farm life--Mississippi.
C. L. Youngblood family farm; multiple views. Farm located in the Penantly Community near Rose Hill, MS. Jasper Co. agent W. C. Jefcoat and Associate county agent W. E. Ethridge assisted with selection of farm family.