Source: The Manchester Republican, May 29, 1873, Ad:

BALL & PEEK, Proprietors of the Manchester FOUNDRY AND MACHINE SHOP,
Are now prepared to MANUFACTURE OR REPAIR All kinds of Farming Implements.
We manufacture Breaking Plows as a Specialty; both cast and steel mould boards.
Having leased the Foundry and made some improvements, we are now prepared to sell our Celebrated plows at reduced prices.
Our $16 Plows sell for $14; our $12 plows at $10. Call and see us and learn particulars.