Vintage USS Petrof Bay Tee Shirt Size Medium Made in USA With Single Stitch Sleeves. 

USS Petrof Bay was the twenty-sixth of fifty Casablanca-class escort carriers built for the United States Navy during World War II. She was named after Petrof Bay, which in turn was named in 1928 after Ivan Petroff, a Russian Alaskan who served as a special census agent for the 1880 United States census.