100-1000 or more depending on specifics
Depends greatly on the model, serials are not unique. If the gun was manufactured after 1920 check the date code stamps on the barrel. Details on the Remington Society of America on the Manufactured Date link.
If you mean "patent" dates, no, that does not necessarily indicate when the gun was manufactured. The patent date indicates when the design was patented.
The Ithaca Gun Company manufactured shotguns between the years 1969 and 1978. The Model 200 was almost certainly manufactured at that?ætime.
The serial number will identify the year of manufacture. Check the link below to date your gun.
A gun manufactured by Browning Arms
HI, the gun was manufactured in 1969, Carl
A reputable gun dealer should have access to those Walther records that detailed the date of manufacture.
70-100 Years
check the date code stamped on the barrel. Remington Society of America, Manufactured Date link has the details.
Winchester. They made the gun between September 1942 and February 1944.
Judging by the serial number, this gun probably has their 277, Oxford Street address on the rib. If so, it was manufactured between 1883 - 1903. [A Reilly collector]