Duplex Envelope Co. v. Baltimore Post Co.

The plaintiff has long been established in the business of supplying religious bodies with a special form of envelopes for use in weekly church collections. In the development of this enterprise, the plaintiff adopted the device of printing-on the backs of the envelopes exhortations, with the twofold object of stimulating a constant attendance at church services and a liberal and regular contribution for church purposes. The content of this printed matter was different every Sunday; it was introduced by an appropriate text from the Bible, and its composition was by eminent divines or…