A likely candidate would be A. H. Harris and Sons, distributors of various building supplies, founded in 1916 in New Britain, CT. Now, they have centers all over the NorthEast.
At one time, they used "HAR - MAC" as a logo.
I see those objects at the ends of the blade etch as stylized evergreen trees, a source for building supplies.
DE OPPRESSO LIBER
"...Men may spurn our appeals, reject our message, oppose our arguments, despise our persons ___but they are helpless against our prayers. "