Any person, firm or entity who in any way, as principal, broker or agent:
Deals in the commercial purchase or sale of secondhand articles for any purpose and of whatever nature, including but not limited to old gold or other precious metals, coins, stamps, currency, firearms, cameras, business machines, musical instruments, outboard motors or electronic equipment.
Accepts or receives secondhand articles as returns of merchandise or in exchange for or for credits on any other articles or merchandise.
Deals in the commercial purchase or sale of pawnbroker tickets or other evidence of pledged articles.