The letter G prefix to your serial number indicates that your Marlin rifle was made in the year 1950.
If you mean serial number 27,078,977;then it was made in 1973.
If you mean a serial number on some product, it depends on what the product is. Each company can makes serial numbers mean anything they want it too.
A marlin model 36 adl 3rd variation which should have a C or D prefix to the serial number is selling for between 450-550 dollars.If your rifle has a B prefix to the serial number,then it is a 2nd variation model 36 and is going for between 600-750 dollars in 90-95% condition.Which is what I would assume you mean by (mint).
It means that it is a duplicate serial number
It's part of the serial number.
You have a serial number of 00000 the letters NW mean your BPS was made in 1994.The B52 could be referring to the model number.
This is the serial number. Each bill has a unique serial number that identifies it.
Could be a serial number or assembly number
Regular Carbine.
9700253
Gun Registration...
Serial number