Need Information on Darton Recurve

[Archer 1]

I just got a older Darton Recurve 60" long 45#, It has the green glass on back, and belly. the serial number is 102B7120 with what looks like a N below the serial number, but not sure, because it is wore off some. There is no other markings on it, other then the Darton sign.
Does anyone know how to date this bow, or a site I could go to to find out when it was made.
I had one like it many, many, years ago when I first started bowhunting, except I think my first one was 56", or 58", It's been so long, I can't remember. It was my first real hunting bow, so would like to find out about this one, If I can.
If anyone can help, It will be greatly appreciated.
Thank You,
John.