The Sims Silversmith Shop is a reconstructed example of a silversmith shop from the British Period (1764-1784). The wooden structure is typical of British-built structures in St. Augustine. Allegedly, Scotsman William Sims (or Sime) operated a silversmithing business in St. Augustine. Sims’ shop was not located on this specific site, and it is currently unknown exactly where his shop was located. The shop was built by the State of Florida in 1964.
The full Wikipedia entry for the Sims Silversmith Shop is available here.