Object Record
Images
Metadata
Object Name |
Alidade |
Other Name |
Alidade with Case and Accessories |
Description |
Part A: Wood, possibly mahogany. Brass-bound corners. Brass lock at front center with two swing hooks and eyes, one on either side of lock to hold lid down. Leather carrying strap attached to one side with a thick rounded handle in center. Other end attaches with brass buckle and single tongue. . Felt-covered wood blocks inside to secure contents. Front center of lid has black aluminum plaque there reads, "DIETZGEN" with a sideways compass and names of nine United States cities with the last line reading, "MADE IN U.S.A.". Part B: "Wrinkle finish" black paint on brass. Compass and level on rectangular long base. Level, horizontal, and vertical degree scales on left side of cylinder holding glass lenses. Brass arc plaque on side has patent numbers. Small collapsible lens on side. Attache to bottom is buddle of black string. Stamped on bottom front of base is, "DIETZGEN / GEOLOGICAL ALIDADE / MADE IN U.S.A. / 40075". Slides into Part A with base at front. Part C: Brass cylindrical shade to slide over front of Part B wide lens. Painted with a textured black. Front cut on a sharp diagonal. Four slits cut into base. Fits over rounded corner post in Part A: Part D: Black wood cylindrical tapered handle with silver metal ferrule and brown short fibers at end. Stamped on base of wood handle is. "10 / DIETZGEN". Fits into hole in back left corner of Part A on inside. Part E: Cylindrical steel shaft with tapered end. Blue iridescent color. Fits into central holes in post in back right corner of Part A. Part F: Cylindrical steel shaft with tapered end. Blue iridescent color. Eyelet formed into one end. Fits into central holes in post in back right corner of Part A. Part G: Hexagonal piece of red substance with worn ends. Surveyors chalk perhaps. Fits into large centeral hole in back left corner post of Part A. Part H: Round brass cup with four slits in upturned sides and textured along edge where upturned sides meet convex bottom. Black in color. Cover for large lens on Part B. |
Collection |
Adams Museum Collection |
Catalog Number |
ART.2004.056.001A-H |
Material |
Wood/Brass/Steel/Glass/Liquid/Twine/Paint/Hair |
People |
McClure, Jack |
Search Terms |
Geology Tools Belle Fourche Surveying Equipment |