Vintage 9" Irwin Perfect Handle Round Shank Screwdriver, 5/16" Tip. I believe this is an Irwin, it's tough to read the markings. 

Please look closely at the pictures, they are the best description. I am not an expert, please judge the item for yourself. I only ship to USA mainland, sorry. To the winning bidder. Payment is due within two days from the end of the auction. USPS Priority Shipping. 

Good Luck and thanks for looking!