Oh, I know that model well. Right now the Ray-Ban Shooter Sunglasses RB3138
are offered at OpticsPlanet! Check out our competitive pricing and free ground shipping to anywhere in the continental USA. The B&L stands for Bausch & Lomb who originally owned Ray-Ban
many years ago. Your pair may be vintage and I wouldn't know that value of those. Just the brand new ones.
I hope this helps!