Copper in Basalt, Lake Superior Copper District, attr: Petherick Mine, Copper Falls Complex, Keweenaw County, Michigan Medium cabinet 9 x 9 x 15 cm $75. Online 6/6
NSMW11273
Copper, Lake Superior Copper District, Michigan, Phoenix Mine attr., Keweenaw County attr., ex. William A. N. Severance Collection 99.56, Small Cabinet 3.0 x 4.0 x 8.5 cm. $4500. Online March 3.
NSMW13542
Copper, 'Laker Pocket', Lake Superior Copper District, near Eagle Harbor, Keweenaw County, Michigan Miniature 2.5 x 3 x 4.5 cm $250. Online 7/21
NSMW12721
Copper with Silver, Nonesuch Shale Formation, White Pine Mine, Copper Range Mining Company, Lake Superior Copper District, Ontonogan County, Michigan Large cabinet 2 x 4.5 x 31 cm $650. Online 11/11.
NSMW11550
Copper (Pipe amygdule), Central Mine, Lake Superior Copper District, Keweenaw County, Michigan Medium cabinet 0.9. 1.3 x 16.0 cm $200. Online 6/6
NSMW11272
