53 Pa. Stat. § 16726
Every waggoner and carter, employed to haul wood for the inhabitants of the said city, district of Southwark and townships aforesaid, shall have in his said wagon or cart, of his own property, a sufficient number of hewn standards, for preventing the wood from falling off from his carriage, marked with the initial letters of his christian and surnames, on the outer side of the said standards, under the penalty of five shillings; and that if any waggoner or carter shall take and appropriate any wood, belonging to any of the inhabitants aforesaid, which he shall be hired to haul, and shall apply or appropriate the same to his own use, or shall not deliver it to the true owner or purchaser thereof, every such person, so offending, shall forfeit and pay two shillings for every stick or piece of wood, so appropriated or detained, to the owner or purchaser thereof, being first legally convicted of the said offence before any justice of the peace of the city or county of Philadelphia.
53 P.S. § 16726