1970 COMPASS-
WHITES SILVER EAGLE-
WHITES DFX, 4X6DD COIL, 6X8DD COIL, 950 COIL, 10X12SEF COIL-
GARRETT PRO POINTER AT, GARRETT AT PRO , MINELAB EXPLORER SE with 8.5x12.5 Cors coil
So far all I can find is that the company was started by JH's Dad in the 1840s. JH and his mom continued the family biz until early in the 20th century. I saw one on etsy that looked very similar, and was from the 1880s.