The Hubbard mark and logo is clearly marked---the "B M" is not quite as clear but still visible--below the BM is another mark that I cannot decipher.
Vintage H in Shield Logo Hubbard Special 5 Lbs 3 oz Hammer Head ONLY Blacksmith
(B) VINTAGE 21" W&B RAILROAD SPECIAL MONKEY WRENCH J.H. WILLIAMS P.A.R.R - USA
Rare Antique Railroad Hubbard Hammer B and M Spike Driver ☆USA
Vintage Railroad Special Monkey Wrench by W&B JH Williams & Co NL
Vintage 13” W & B “Railroad Special” J. H. Williams & Co. Monkey Wrench GWSCO
