Michigan Supreme Court February 5, 1892 (Colles v. Swensberg)

McGrath, J.

Plaintiffs, who were doing business at Chicago, 111., called upon defendants at Grand Rapids, and wrote out and delivered to them the following proposition:

“ Grand Rapids, Mich., March 8, 1888.

“We propose to attach one of our improved No. 4 boiler-cleaning filters to your boiler, on a trial of one year from date of attaching it, for three hundred dollars.