Welcome to the Forum. There are 5 models of 38 Hammerless revolvers defined by collectors. You have a 38 Safety, 4th Model, while production ended with the 5th Model. One must remember that the factory made over a quarter-million of this model, from 1 to 261,493. Production took place between 1887 to 1940. BATFE states that the 38 top break hammerless revolvers are antiques if serial # is below 119,900. That means made before the start of 1899. It is likely that your revolver shipped around 1908, so all laws and regulations for "modern" firearms apply.