18691005, CHARLTON H. DAVIS, SAN FRANCISCO, CALIFORNIA, Patent No. 95569, October 5, 1869, IMPROVED ROCK-DRILL by lasertrimman ● portfotolio

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lasertrimman: 18691005, CHARLTON H. DAVIS, SAN FRANCISCO, CALIFORNIA, Patent No. 95569, October 5, 1869, IMPROVED ROCK-DRILL,

©

lasertrimman: 18691005, CHARLTON H. DAVIS, SAN FRANCISCO, CALIFORNIA, Patent No. 95569, October 5, 1869, IMPROVED ROCK-DRILL,

©

lasertrimman: 18691005, CHARLTON H. DAVIS, SAN FRANCISCO, CALIFORNIA, Patent No. 95569, October 5, 1869, IMPROVED ROCK-DRILL,