Complex sentence: Gold opened his own pawn shop, American Jewelry and Loan in 1978, moving to its present 50,000 square foot location in 1993 in a building that was formerly a bowling alley.
Split into simpler sentences: Gold opened his own pawn shop, American Jewelry and Loan, in 1978. In 1993 he moved it to its present location: a 50,000 square foot building that was formerly a bowling alley.