The "Mint State" Americana & Numismatics Auction (2025 May)

This pp.45 booklet offered by the John Taylor & Co. includes the tables for silver assay values. It is listed at their new (1894) Mission St. ad...

This receipt written by P.L.Parker for bullion deposited at the San Francisco Assaying and Refining Works on Jan. 7, 1867. Deposit #3874 for 27.03 oz.

This booklet is the Gold and Silver Tables for the San Francisco Assaying and Refining Works Co. formerly Kellogg, Hewston & Co. The booklet is ...

This invoice is to The Bullion & Exchange Bank bought from Justinian Caire Hardware and Fancy Articles dated 1883. The invoice is for extensive ...

A dozen receipts of bullion deposits from the Manhattan Mine in Knoxville, California. Owned by San Francisco businessman, R.B. Knox. it was involved

There are three gold dust receipts from Forest Hill, Moore's Flat, and North San Juan dated between 1860 and 1866. These were: Banking House of ...

Rare assay report from MIT for A(lexander) Agassiz, son of famous 19th century geologist Louis Agassiz. This assay was for a sample of gravel weighing

A rare assay document from J.R. Murphy the office of the First National Bank of Nevada, Austin dated May 17, 1867. The assay is of mill pulp deposited

This 1867 assay receipt is from the office of David Lundbom dating February 9, 1867; his office was based in Austin, Nevada. This is the assay receipt

Extremely rare. We have offered receipts from his Austin, NV office but not this office in Eureka. Deposit by John Perry on April 3rd, 1874. Valued at

Lot of 3. The Gold Hill Assay office was founded by Conrad Wiegand, passed onto Dowling, back to Wiegand's son, and then sold to W.S. James. 1) ...

There is one assay receipt for the Florence Mine in Goldfield that reveals a concentration of 5.98 oz. of gold per ton or about $20,000 per ton in tod

Lot of three assay maps for the Elko Prince Mine of Midas, Nevada. Assay points taken throughout 1913-34. Shows 300, 450, 600, and 750' levels. ...

Assayer sample bags (2). One that measures 5"x 11", is labeled R.H. Frazer Chemist and Assayer, 117 E. Second Street Reno, Nevada, while t...

This assay for the Tonopah Extension Mining Co. is for both gold and silver. There are 14 samples of both gold and silver. Very high grade ore listed.

This is an ore sampling from the Consolidated California and Virginia Mining Co. mining company; the largest producer of gold in the Comstock District

This assay #9696 from the office of E. Ruhling & Co. of Virginia, Nevada for the Savage Mine Co.(Pappoose Mill) dated 1871. The total value is $...

These two assay documents are from the Comstock mines. The Chollar and Potosi Assay Office processed gold and silver for the Savage Mining Co. on Janu

This document details the cost savings and improved ore extraction by Edward N. Kent a chemist and superintendent at the United States Assay Office in

There is an assay receipt from the Assay Office of J.R. Reedy of Central City, Col. dated May 14, 1891. It shows 14 oz. of gold, and 124 oz. of silver

Lot of 16. An instant assay department group, perfect for a shop or office display. Includes: 5 large crucibles, three metal ladles/pouring tools, 5 s

A small 10 troy ounce ingot mold. It measures 2"x 5.5"x 5.5" and is in decent condition. Please see photos for more details. ^ Date: ...

A couple of bullion molds. One is marked Knight Foundry Sutter Creek 40 OZ. Sil. It measures 3"x 7"x 2". The other has no markings. I...

Two large (481 Troy ounce) bullion weights and 9 much smaller weights. These are all in nice condition, ready to weigh your riches. Please see photos

c. 1800's-1910. Wood hinged lid set of weights, milligrams up to 12 oz. with tweezers-missing 1 milligram weight. Wood base with 1 DWT to 5 oz T...

3 c. 1860-1930 weight sets in cases as used for gold, assaying and other purposes. All are incomplete, usually missing some weights. See photo. ^ Date

Portable miner's scales in metal boxes. First is marked "Miners Improved Gold Scale" "Manufactured Especially For California.&q...

4 c. 1850-70 pocket balance scales as would have been used in California, Nevada, Oregon, Colorado etc. All are incomplete. See photo. Cases 2.25x5.25

Collection of 5 pocket balance scales with 2 in miners tin boxes with various weights present. Most are c. mid 1800's, the jewelers balance is 2...

1881 article of incorporation for Yosemite Gold and Silver MC. Mine property in Yavapai County, Arizona Territory. Fine condition with just a small ho

Ore bag from Atolia Scheelite Mine. Bag is burlap and measures 26"x 17" and is in new condition. Please see photos for more details. ^ Dat...

c. 1910s-40s Canyon Mines in Baxter, CA ephemera including 2 lode claims, 2 daily mill reports, letterheads etc. Original photos-2x 8x10". 6x 5...

Lot withdrawn. Duplicate of Lot 2364

1.5 pound unopened can of Zzyzx, Zzyzx: History of an Oasis by Duffiels-Stoll, more related ephemera. See photo. ^ Date: Country (if not USA): State

One page letter datelined Montezuma Mine, Big Pine, Inyo Co., Cal. The Montezuma Mine, clearly visible from highway 395 near Independence, was a signi

John Ryan signs a 3pp document requesting clearance of a 3.19 section of the old Ryan rail line from the Lila C mine to the Death Valley RR Co from th

Large volume and accompanying published brief regarding George Atkinson vs Amador and Sacramento Canal Co., an 1870s lawsuit. This suit involves an ap

Ore bag from The Yuba Mining Company of Georgetown, California. It measures 17"x 28" and is in new condition. Please see photos for more d...

Photo of 40 or so miners--and a dog!--posing with miners lunch pails and candlesticks. Pencil notation on reverse says "Mine at Gold Flat near ...

A handwritten 'law book' from the Grass Valley Gold Extracting Company, likely dating c. late 1800s-early 1900s. The book, which is hardcove...

This is a check written off of the F. Berton & Co. Bank in Grass Valley, California dated 1879; for $231.00 . This is the successor to Hentsch &...

A Grass Valley, California 1916 mine map by Edward Uren. The map measures 28.5"x 34" and is matted and framed. A beautiful wall hanging. ...

Lot of 5 different framed Grass Valley mining photographs. It is unclear if any are reproductions. 1) Photo showing 14 miners of the Idaho Maryland Mi

Lot of 2 different. 1) Framed cabinet card by Taber (SF) of Glasson, who was part of the Nevada County Narrow Gauge Railroad, the Coleman Clothing Sto

4.5 x 7.5" photograph over of 50 miners from the Idaho-Maryland Mine in Grass Valley posing outside. Note lunch pails on the ground and even tw...

Reproduction of a map of the vicinity of Grass Valley & Nevada City, Nevada Co., California, showing location of Mining Claims, etc., by W.F. En...

A colored illustration on linen depicting a cross-section of the Argonaut Shaft in Jackson, California, dated 1913. Signed very lightly at bottom righ

Kennedy Mining & Milling "Cash Account", 1913, 4pp Legal size, 2pp folded. Contains the names, dates and pay rates for miners and w...

A copy of 'Mining Directory/Catalog and Engineers Handbook: Los Angeles County', published in 1932 by the Los Angeles Chamber of Commerce. I...

Exceptionally rare. Mono Lake adjacent mining camp. Detroit Copper Mining Company (lower left). Dateline Vernon, Mono Co., Cal., Nov. 25th, 1882. Issu