Ephemera, Washington, D.C. Department of Commerce United States Bureau of Mines, 1931. Good with No dust jacket as issued.
Mimeographed booklet is soundly stapled (staples are slightly rusty). Pages typescript, clean with light tanning. Small amount of writing at top front. Illustrated with diagrams, maps. ; Analytical report on aspects of milling feldspar at the Minpro Plant in Spruce Pine, N.C. ; 10.5" tall; 22 pages.
Price: $20.00 save 20% $16.00