Tom Overlin Surfboard

Hey guys,

I recently aquired a beautiful 7’ single fin shaped by Tom Overlin in the 70’s.

I am in the process of selling it but I have no idea what it is worth.  Can anybody help?  

Ill attach some pictures of it.

https://swaylocks7stage.s3.us-east-2.amazonaws.com/s3fs-public/Xji+9ls8SNSt5QKbw+cP9w.jpg

$250-$300 is my guess.