Purely FYI, Victor Sarasqueta did not found his company in 1883. It was Victors older brother, J.J. (Juan Jose) Sarasqueta that founded the gun making company in 1883. Victor went to work for his brother, J.J., circa 1887 serving a seven year apprenticeship at the shop of J.J. Sarasqueta.
Victor successfully completed that apprenticeship in 1895, and went on to found a company in 1899 in partnership with Francisco Cortaberria and Jose Urizar. This partnership lasted several years before breaking up, at which time Victor Sarasqueta opened his own company as sole proprietor.
