The Miroku MK3800 is a shotgun model that was produced in the mid-1980s to early 1990s. Given that the serial number 47666nm falls within that production range, it is likely that this specific firearm is approximately 30 to 40 years old, depending on its exact manufacturing date. For a precise age, you may need to consult Miroku's records or a firearms expert.
You will have to contact Miroku to find out.
You will have to contact Miroku
The letters NZ in the serial number indicate that your Miroku made Browning was made in the year 1991.
Sorry- no public records. You can try contacting Miroku.
If it was made for Browning you can tell by the serial number.
No sn data outside the factory
No published sn data.
Miroku was making shotguns for different firearms Companies before Browning came along. Charles Daly was one of their biggest customers for shotguns. More info is needed to determine which gun you have. This is not a Browning serial number.
The Charles Daly Model 500 12ga SxS shotgun made by B.C. Miroku with the serial number 199588 was produced in the early 1970s. Specifically, Miroku began producing these shotguns for Charles Daly in 1969, and the serial number indicates it likely falls within that timeframe. Therefore, as of 2023, the shotgun would be approximately 50 to 54 years old.
I can say that your Browning BL-22 was made between 1970-2003 by Miroku of Japan.
No way to tell without more of a description.
You will need to look in old gun catalogs, Blue Book of Gun Values, etc..