I found a "T" wrench that is about 6-3/4" long with a 3/8" "T" handle that is also 6-3/4" long. There is a six point socket that fits a 3/4" nut slightly sloppy. The 3/4" hex top has the letters P-S in a circle along with the numbers 966 and the letter "D". Could this be Peck Stow Of Peck Stow- Wilcox?