Bisbee daily review., 1916-05-07
COMMONWEALTH EXTENSION |S COMING |NTO
 |1S OWN
22O Level of the Rainbow Shaft is Developing Some Excellent Silver Ore. Prom ising Great Future
FINE HORN SILVER
 FREQUENT IN TONNAGE
Company is in Excellent Shape To Go Ahead. All Indications Point To Sue cessful Development

With record of s25,0OO.OO0 be , hind it the Commonwealth Mining
 and Milling Company is still produc
 ing. Its veins. from every possible indication, are going south. around
 the famous hill from which John Pearce over twenty-five years ago
 took the first Bonanza silver ever found in the region.
 All of this would be a poor intro | duction for layman's view oI tns Commonwealth Extension, were it not for the fact that the veins appear to ! be going into Extension ground and holding promise for another big pro perty.
 Twenty-Five years ago and more John Pearce and his brothers lived 1 on a ranch in the neighborhOod of what is now the town of Pearce. John | Pearce prospected the hill and on the northwest side uncovered some ricn silver ore. With the aid of his broth CTS he worked the property and sometime later sold the property to the old Commonwealth people for S275,000. This company took many millions of dollars from the hill. The present operators of the pro perty are more scientific miners. They are grading their product and have one of the most up-to-date mills, of the character, in the entire country. They are handling immense tonnage and the life of the mine cannot be computed in months.
 The ground in which the silver is found consists of a high foothill. which sticks its nose out of the Sul- phur Springs valley, much after the fashion of an ant hill in a back yaru. The other and similar hills in the valley have been prospected and no silver has been found. Ii is one of the many freaks of nature.
 The old company owns the north east side of the hill. The Extension owns ten claims, four of which are patented and six unpatented. They take in the south end of the hill. southeast of the hill and for several thousand feet into the flat. south, east and west. The south line of the old Commonwealth is about 300 yards from the southernmost shaft of in. company The workings of the old company are down 700 feet in this neigbhorhood and within 800 or 600 feet from the southside lines.
 The working shaft of the Extension has been sunk within 9 feet of the Commnwealth's south lines. It Is substantial and aedQuate for pros pecting purposes but the company, when sufficient ore has been devel- oped to warrant it will have to sink a larger shaft double or triple com partment
 At the present time the develop ment work of the Extension consists of the above shaft. called the Rain bow: down 2S5 feet, fifteen feet being the stump. On the l50 level consid- erable lateral development has been prosecuted and some very rIcn ore ta- ken out. The country. however. is spotted and being pushed east. Some Of the most be0utiful horn silver imaginable has been taken from this working. This crosscut is now in a matter of B feet and is being pushed ahead rapidly.
 Here it is proper 10 say that the old company and the Extension have worked on the best of terms and are now doing she same. The old com pany is offering every facility possi ble to the Extension for the latter people to prove their property. Con sequently when the Commonwealth desired to explore is southern zone which, heretofore, has been untouch ed. the Extension allowed the work to be done from the Rainbow shaft.
 This work is now across the side lines and into Commonwealth ground on the 220 level. west from the snaT, Thirty feet of ore. of a good milling average, was encountered in the EX tension ground and it is said the Commonwealth is also some excellent indications.
 Twenty feet from the shaft. on the west crosscut of the 220 level. the Extension is now starting drift The faith of nearly every miner who
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