What is the manufacturing date for a Iver Johnson's arms cycle works safety bolt action long and shorter model numberx patnumber 1.673.666?

The Iver Johnson's Arms Cycle Works Safety Bolt Action model with patent number 1,673,666 was patented on June 26, 1928. However, the specific manufacturing date can vary depending on the individual firearm's serial number, which is not provided here. Generally, models produced in the late 1920s through the early 1930s would fall under this patent. For precise dating, it is recommended to consult a dedicated firearm collector or reference book that includes production records.