The Davistown Museum
Center for the Study of Early Tools
Scattered throughout The Davistown Museum are tools by important manufacturers who are also the subject of
information files compiled by the museum. This is a listing of our holdings for:
Loring and Aury Gates Coes

Status Location
Historic Maritime III (1800-1840): Boomtown Years & the Dawn of the Industrial
Revolution
Wrenches
TCZ3000 Monkey wrench bio DTM
Forged iron, 11 7/8" long, signed "L. COES PATEN__" (date obscured) and on the second side "____ BOSTON &
WORCESTER", probably ca. 1835 - 1840.
This wrench appears to be one of the earliest versions of the famous Coes monkey wrench; Loring Coes patented his first
wrench on April 16, 1841. The wrench has characteristics of the late 18th century or early 19th century hand forged
wrenches in the Davistown Museum collection, particularly in the way the handle is manufactured. According to Herb Page
<mroldwrench@mchsi.com> "During the period of 1848 to 1852 the firm of L & A.G. Coes contracted with the firm of
Ruggles, Nourse & Mason on a 5 year term to market the entire production of wrenches produced by this fledgeling firm.
R.N.& M. had branches in both Worcester & Boston and the wrenches produced during this time period were stamped with 1)
"L. Coes Patent", 2) "Ruggles, Nourse & Mason" if space permitted, depending on size of wrench and 3) "Boston & Worcester"
indicating the sales outlets of the marketing firm. These wrenches were manufactured in
Worcester at the firm of L & A. G. Coes and the particular marking referred to is indicative of early production during the
above mentioned dates. These are quite rare and have a distinctive circular insert in the working face of the lower jaw which
is in line with the adjusting screw. Coes wrenches of this era are quite rare and desirable among
antique wrench collectors."
Historic Maritime IV (1840-1865): The Early Industrial Revolution
Wrenches
11301T12 Monkey wrench bio BDTM
Cut steel and wood, 4 5/8" long, signed "L Coes & Co Pat Mar 29 1868".
Loring and his brother Aury Gates Coes had been in the wool machine business until 1839. This is the highly sought-after
smallest size of the many Coes wrenches.

Page 1 of 1