Antique Mays Hook Swivel Hook Brass Bronze Nautical Fishing Tool Pat 2043277. Product: Lot of (4) Vintage Mays Lock Swivel Hooks. Material: Heavy Solid Brass / Bronze. Markings: Stamped “MAYS LOCK” and “PAT 2043277″. Up for sale is a rare set of vintage maritime hooks. These are authentic Mays Lock swivel hooks, famously used in the commercial fishing industry. They feature a unique safety-lock design and a heavy-duty swivel base with an eyelet. These items are in original, “found” vintage condition with a beautiful natural patina and some verdigris consistent with age and maritime use. They have not been polished, preserving their historical character. Please look at the photos carefully as they are a vital part of the description. These are heavy, solid pieces perfect for a nautical collection, industrial steampunk art, or functional use on a boat. These are heavy duty hooks approximately 4 to 5 pounds each. Recommendation from the appraiser was not to clean these hooks and leave the residual grease on them to ensure they will remain in the pest condition that they are. This is a very rare find. Please send me a message if you have any history or any information regarding this beautiful hooks.