Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
1945
12750 Roelwell clay mine, op'd by Geo. W
Parfet Est. Inc., Linden Block, Golden
3533 Rubey clay mine, op'd by H. M. Rubey
clay co., Linden Block, Golden.
543 South clay mine, Denver Fireclay
Co., Box 5510, Denver.
2