Jamieson, Fausset and Brown on Acts 19:24-26

24-26. silver shrines for--"of"

Diana--small models of the Ephesian temple and of the shrine or chapel of the goddess, or of the shrine and statue alone, which were purchased by visitors as memorials of what they had seen, and were carried about and deposited in houses as a charm. (The models of the chapel of our Lady of Loretto, and such like, which the Church of Rome systematically encourages, are such a palpable imitation of this heathen practice that it is no wonder it should be regarded by impartial judges as Christianity paganized).

gain to the craftsmen--the master-artificers.