 more than one hundred - and perhaps double or even triple that amount - ancient-coin firms dealt mostly via the internet, a method of selling ancient coins first started by Malter's firm in the early 1990s.Malter's auction catalogues, articles published in "COINage" magazine in the 1970s and 1980s, and various other scholarly works on ancient coins, antiquities and collecting have become much sought-after and respected by collectors and worldwide dealers alike.Malter began his small one-man business in the garage of his home in Venice, California, and soon started to realize profits unachievable at that time in teaching.