Archives International Auctions - Auction 107 October 29, 2025

Archives International Auctions - Sale 107 98 October 29, 2025 Archives International Auctions www.archivesinternational.com 431 431 CO. Pittsburg and Denver Mining and Milling Co., 1884 I/U Stock Certificate. Denver, Colorado, 1884, 100 Shares, black print on white paper with decorative border, central vignette of allegorical Liberty seated beside Colorado’s state seal, embossed corporate seal at lower left, issued to Thomas S. Mitchell, Trustee and signed by the company president and secretary, the Pittsburg and Denver Mining and Milling Company was capitalized at $250,000 to develop ore deposits in the Colorado mining region, an example of late 19th-century regional investment, VF condition with light folds. ���������������������������������������������������������������������������������������������������������������� Est. $100-200 432 432 CO. Royal Mining, Smelting and Prospecting Co., 1882 I/U Stock Certificate. Leadville, Colorado (Inc. in Colorado, Offices in Connersvillle, Indiana) 1882, 600 Shares, I/U, black print on cream paper with ornate border, large gold “$10” denomination across center, bold gold embossed seal at lower left, vignette of miners working underground at top, issued under the laws of Colorado with branch office in Evansville, Indiana, signed by the president and secretary, the Royal Mining, Smelting and Prospecting Co. was active during the Leadville silver boom, financing mining and smelting operations in one of the richest ore districts in the West, VF condition with crisp paper and bold design. ������������������������������������������������������������������������������������ Est. $130-260 433 433 CO. San Juan Bullion Co., 1880 I/U Stock Certificate San Juan District, CO (Offices in Chicago, IL, Inc. in Wisconsin), 1880, 200 Shares I/U stock certificate, green paper with black print and ornate border, central vignette of reclining Liberty with shield, embossed seal at lower left, signed by the company president and secretary, the San Juan Bullion Company was a Wisconsin-incorporated enterprise formed to finance silver and gold mining ventures in the San Juan Mountains, reflecting Midwestern investment in Colorado mining during the 1880s, Choice Fine to VF condition or better. ��������������������������������������������������������������������������������������������������������������������������������� Est. $120-240 434 434 CO. Silver Cord Combination Mining Company of Colorado, 1880 I/U Stock Certificate. Leadville, Colorado , 1880, 300 Shares, black print with striking blue “NON-ASSESSABLE” overprints at left and right, central vignette of miners at work underground, bold embossed company seal at lower center, purple transfer stamp at left, signed by officers, ornate border with rooster vignette in lower corners, the mines were located on Iron Hill, Leadville, CO. The Silver Cord Combination Mining Company operated during the height of the Leadville silver rush, reflecting both the promise and volatility of Colorado mining investments in the late 19th century, XF condition. ABNC. ������������������������������������������������������������������������ Est. $200-400 435 435 CO. South Side Milling & Mining Co., 1882 I/U Stock Certificate Leadville, CO. (Inc. in Colorado), 2,000 Shares I/U stock certificate, black and gold print on white paper with ornate border, central vignette of a mill complex set against rugged mountain scenery, smaller vignette of a miner at lower right, embossed corporate seal at lower left, signed by the company president and secretary, the South Side Milling & Mining Company was incorporated in Colorado in 1882 to combine milling operations with mining ventures during the state’s silver boom, Choice Fine to VF condition or better, Printed by Empire Lith. & Eng. Co., Denver. ��������������������������������������������� Est. $150-300 436 436 CO. St. Louis Gunnison Mining Company, 1880 I/U Stock Certificate. Colorado (Office in Denver, and Inc. in Colorado), May 25, 1880, 24 Shares, I/U, black print on light gray paper with ornate border, vignette of Colorado state seal at top center, embossed company seal at lower left, S/N 23, signed by the president and secretary in purple ink, the St. Louis Gunnison Mining Company was one of several enterprises that sought to develop the Gunnison region during Colorado’s silver expansion period, representing Eastern and Midwestern investment in the Rockies, Extremely Fine condition with bold signatures and clean presentation. � Est. $150-300