53 Pa. Stat. § 25251
A second-hand dealer, for the purpose of this act, is any person, association, copartnership, or corporation, who, either wholly or in part, engages in or operates the trade or business of buying or acquiring, as forfeited pledges, any of the following articles, except from a regularly established wholesale dealer: antiques, precious stones, jewelry, watches, old gold, platinum, silver, and all other precious metals; all kinds of bricklayers', carpenters', planters', mechanics', blacksmiths', tinners', plumbers', electricians', barbers', and all other kinds, of tools; all kinds of doctors', surgeons', dentists', undertakers', draftsmen's, and all other kinds of instruments; all kinds of electrical, musical, telegraph, and telephone, and all other kinds of instruments; scales, typewriters, adding machines, cash registers, dictaphones, phonographs, and all other similar devices; all kinds of water, electrical, and gas, fixtures, appliances, and supplies; all kinds of automobile tools and accessories; all kinds of house and office fixtures, furnishings, and appliances; pool and billiard tables; sporting goods of all kinds; bric-a-brac; clothing, shoes, and all other wearing apparel; trunks, traveling bags, and suitcases; and fire arms of all kinds; any wire cable, copper, lead, solder, iron, or brass, used by or belonging to a railroad, telephone, telegraph, gas, or electric light company.
Second-hand articles or goods, for the purposes of this act, are any of the articles or goods enumerated above, that are purchased or acquired as forfeited, pledged from anyone except from a regularly established wholesale dealer.
53 P.S. § 25251