The Monumental ore mill was built in 1878 to process rich silver ores from the mine. The Monumental Mine, located near Granite, Oregon, is part of the Granite Area, which is now a portion of the Umatilla National Forest. This site has a rich history, dating back to its discovery in 1870.
18.31 oz Monumental Mine Mixed Metal Ingot, Grant County, Oregon, $24.23 Assayed Value
By far the most impressive ingot of all the Monumental Mine bars known, this one is a true mixed metal assay with an impressive bread-loaf shape.
The Monumental mine of Grant County near Granite, Oregon issued this mixed metal ingot with the number 271. The stamped weight on the present ingot is 18.31 ozs., with .018 fine gold, and .736 fine silver. The respective values of the silver and gold are stamped on the ingot, silver $17.42 and gold $6.81 for a total assayed value of $24.23. The name plate MONUMENTAL MINE / GRANT CO. OREGON is stamped on the side in a rectangular box. An authentic 1800s ingot from Oregon, which was granted statehood in 1859. This ingot is one of just four that survive from the Monumental mine.
[10/2015] https://coins.ha.com/itm/ingots/monumental-mine-mixed-metal-ingot-grant-county-oregon-2423-assayed-value/a/1225-3688.s ($11,750)
6.86 oz Monumental Mine Silver Presentation Ingot. Christmas 1880.
This Presentation Ingot is from ore from the Monumental Mine, located in Grant County, Oregon. The Monumental was discovered in 1870 and had a total production of $100,000 in ore prior to 1928. We have handled two mixed metal ingots, one in 2000 and one in 2015, from this rare mine. The ingot lacks any indication of its exact metallic content, although it is obviously silver. It weighs 6.86 ounces. The front side has the elaborate lettering one would expect from the period, engraved Christmas 1880. At the top of the back side is the Monumental hallmark in the usual sans-serif font. The ingot measures 57 x 31 x 10 mm. Occasional patches of toning are scattered across each side. Accompanied by a suede pouch imprinted: COMPLIMENTS OF THE BANK OF OREGON CITY.
[09/2024] https://coins.ha.com/itm/ingots/monumental-mine-silver-presentation-ingot-686-troy-ounces-this-presentation-ingot-is-from-ore-from-the-monumental-mine-l/a/63300-92003.s ($16,800)
[08/2018] https://coins.ha.com/itm/ingots/monumental-mine-silver-presentation-ingot-686-ounces-total-2-items-/a/1278-4937.s ($4,080)
5.5 oz Monumental Mine Grant Oregon Mixed Metal Ingot
A very early example (the first?) of a Monumetal Mine ingot. It has been drilled on the obverse. Obverse: “No 1, ZO 5.55, FINE 896 SILV, FINE 30 GOL”. Oz spelled backwards.
[04/2023] https://www.worthpoint.com/worthopedia/vintage-silver-bar-5-oz-ingot-4629063672 ($5,200)
$14.25 Face Value Monumental Mine, Grant Co. Oregon
Possibly unique – the only Monumental Mine ingot with a semi-circular logo stamp including Grant Co. Oregon and no border. Obverse stamped with face value: $14.25.
Auction appearance unknown.