http://www.initialmsunglasses.com/M_VINTAGE_SUNGLASSES_COLLECTIONS/RAY_BAN_HAMILTON.html
B&L RAY BAN TRADITIONAL HAMILTON
The shape is little bit rounder than kissena from last post.
Please take a look these frame carefully.
Its looks like tortoise pattern and color. but its not.
Frame color is pretty close to yellow and pattern is almost tiger camo.