Pretty sure that's a Briar Edge stamp on the handle, one very similar to the NYCRR stamped axe below.
Grey George axe out of Tennessee, purchased it from a lady who's father was in WWII, he recalled her grandfather using it as a lumberjack to pay the bills, he used it to try and seek peace in the woods after the war, he had some mustard gas lung issue that kept him up all the time and probably some other trauma.
Kelly Works Woodslasher, on the back it's stamped N.Y.C.R.R. which means the head was used in the creation or maintenance of the railroad in New York, likely 1890s-1900s kind of time frame, Handle may not be original but it is an old Briar Edge handle.