Your chances of finding out are less than winning the world's biggest lottery.
No
Impossible to answer. Serial numbers are not unique to only 1 item in the world.
No
Unless the owner sees your question, you will likely never find out.
It was made in 1978. Today Crosman owns the Benjamin line of air guns.
Yes. Crosman owns Benjamin. see the link below.
No way to know.
There is no way to tell. First there is no requirement in most of the US for registration of firearms. Where that information DOES exist, as a matter of privacy, YOU do not have access to it (Law enforcement may) and last- a serial number is NOT unique to only one gun- or they would be numbered in the billions, not in the hundred thousands like your number.
Unless the person that owns it reads this question, your chances of finding out are almost none.
We need a model to start research. You should contact customer service at Remington (who now owns Marlin)
Most likely around late 1956 according to Crosman who owns Benjamin.
If you want a picture of a gun with a particular serial number, you will have to find out who owns it and take a picture of it. If you just want a generic picture of the model, search the online firearms auction sites.