32 Pa. Stat. § 551
From and after the passage of this act it shall and may be lawful for any person or persons, party or company, who are or shall be engaged in lumbering, in any manner, upon the west branch of the river Susquehanna, or any of its tributaries, to adopt one mark of designation, which mark may be either in letters, figures, words, names, or other devices, at the discretion of such person, party or company, wherewith to stamp or mark all logs, masts, spars, shingles, shingle-bolts, square timber, boom sticks, boards, or other lumber put or intended to be put in said stream or its tributaries to be run, driven or floated to any mills, booms, or markets anywhere, at or above the Susquehanna boom at Williamsport, and to furnish to the prothonotary of the court of common pleas, at Williamsport, in the county of Lycoming, or other county, where the said kinds of lumber shall be put into said stream or tributary, a statement in writing of the mark so adopted, as aforesaid, with a certificate appended, that the same has been so adopted, as a mark of designation, as aforesaid, signed by the person, party, or some officer of the company adopting the same, as aforesaid; and no person, party or company shall be entitled to adopt more than one of any of the kinds of marks aforesaid, as a mark of designation, but any such person, party or company shall not be prohibited from using any other mark or marks, in addition to the mark of designation, for distinguishing different kinds or lots of lumber, or lumber obtained from different localities, so always as that it interfere not with the mark of designation of any other person, party or company; and it shall be the duty of the prothonotary aforesaid, to receive and file of record, in his office, any mark stated and certified as aforesaid, and to give a certificate thereof to the person filing the same, and certificates thereof from time to time to any person demanding the same, under his hand and the seal of the court; and the said prothonotary shall be entitled to demand and receive for the first certificate as aforesaid, the sum of one dollar, and for every subsequent certificate, the sum of twenty-five cents; and the said certificates shall be prima facie evidence of the right of the person, party or company filing the same, to the use of the mark mentioned therein, and that all logs, shingles, shingle-bolts, masts, spars, square timber, boom sticks, boards or other lumber in and along said streams, or in and along the main river Susquehanna, are the property of the person, party or company, whose mark of designation duly registered, as aforesaid, shall be thereon; the right to the use of any mark of designation as aforesaid, shall depend upon the priority of the registry on record, as aforesaid, and no mark of designation, as aforesaid, shall be received or filed or certificate given therefor, by the prothonotaries aforesaid, if the same shall have been previously registered, it being the true intent and meaning of this act to prevent the use of the same mark of designation by more than one person, party or company.
32 P.S. § 551