| | Thumbnail | | Creator | Date | Title / Author / Date / Location | Price | | | Description |
| 5422 |  | Details | Douglas, Jack | 1948 |
| Rare blueprint prospectors map of California gold lodes |
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Douglas, Jack |
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| 1948 |
| LOC:90 |
| $550.00 | Douglas--Jack | Rare-blueprint-prospectors-map-of-California-gold-lodes | Very rare cyanotype (blueprint) self-published gold mining map of California by Jack Douglas (d. 1956)- "The Old Prospector's Lode Map of California." At a scale of one inch = 32 miles the map shows areas in California known to have produced gold, shown as shaded areas.
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The map includes crude decorative images of gold panning equipment and of an old prospector at work. At bottom left a list of other gold lode district maps for sale at $1.00 each includes Alaska, Arizona, British Columbia, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming. These could be purchased along with blueprint assembly instructions for mining equipment by Jack Douglas at Box 21, Dutch Flat, California.
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No holdings found in WorldCat and no mention of the map is found online.
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Text at right discusses gold mining in several California mining districts. Verso is blank. Map no. 153.
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Jack Douglas was the founder of the United Prospectors Organization (1947), originally targeted at professionals who made their livelihood by prospecting and mining. Douglas published a journal- Panning Gold- the first issue of which was issued in 1947. United Prospector's was incorporated on November 29, 1949 with Jack Douglas as President. Other officers at the time of incorporation included Walter Robertson, Stockton, CA; Tylar Jack, Reedy, CA; Speed Freeman, Olympia Field, IL; Louis Borde, Eugene, OR; Harold Mitchell, Umatilla, OR; and Glen Houston, Lodi, CA. Today UPI is "the oldest gold, gems, and minerals prospecting group of its kind."
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<img src="/ZoomifyImages/SC_5422/Doodle_Bug.jpg" alt="" width="200" align="left" style="margin: 0px 10px"/>
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Note: Price includes an additional rare blueprint (shown here) for Jack Douglas' "Doodle Bug" wet concentrator. Copyright 1944.
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