6 Pa. Stat. § 15
In all cases, in which commission merchants, factors and all common carriers, or other persons, shall have a lien, under existing laws, upon any goods, wares, merchandise, or other property, for, or on account of, the costs, or expenses, of carriage, storage, or labor bestowed on such goods, wares, merchandise, or other property, if the owner, or consignee of the same, shall fail, or neglect, or refuse to pay the amount of charges upon any such property, goods, wares, or merchandise, within thirty days after demand thereof, made personally upon such owner, or consignee, then, and in such case, it shall and may be lawful for any such commission merchant, factor, common carrier, or other person, having such lien, as aforesaid, after the expiration of said period of thirty days, to expose such goods, wares, merchandise, or other property, to sale, at public auction, and to sell the same, or so much thereof, as shall be sufficient to discharge said lien, together with costs of sale and advertising: Provided, That notice of such sale, together with the name of the person, or persons, to whom such goods shall have been consigned, shall have been first published for two successive weeks, in a newspaper, published in the county, and by six written, or printed handbills, put up in the most public and conspicuous places in the vicinity of the depot where the said goods may be.
6 P.S. § 15