1913 A Schrader's Son 5 Bolt Antique Diving Helmet

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Nation's Attic Diving Into History 2025 + Mor...

By Nation's Attic Inc.

Nov 1, 2025

Set Reminder 2025-11-01 11:00:00 2025-11-01 11:00:00 America/New_York Bidsquare Bidsquare : Nation's Attic Diving Into History 2025 + More https://www.bidsquare.com/auctions/nations-attic/nations-attic-diving-into-history-2025-more-20857
Nation's Attic's annual Diving Into History auction is filled with some fantastic, rare, authentic diving helmets from around the world, plus related memorabilia. We also have a collection of rare golf balls, US silver coins, plus more. Nation's Attic Inc. helmets@nationsattic.com

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• Lot Description

  One of the most impressive and elusive diving helmets made by the A. Schrader's Son Company is the five-bolt model. Characterized by the five large bolts along the helmet's neck ring that held it together, relatively few of these have survived. Unlike the traditional threaded helmet models, this design relied on the five large bolts to secure the bonnet and breastplate together. In the 21st Century, these "bolt" helmets are prized for their unique appearance, design, and rarity.

  
  

  This helmet features a wonderful, consistent dark red patina to its copper body. The heavy brass hardware also has a warm patina throughout. Typical working dents can be found on the top of the bonnet, with none being severe. Some imperfections in the copper above the neck on the bonnet can be found upon close inspection. All five of the large wing nuts on the five bolts work correctly. All of the glass is intact. The faceplate plate glass is cracked, but still solid. On the breastplate, one of the wing nuts ears is broken off, but it still threads on and off with ease. Other original brass hardware externally is all present and in good condition. The original vents inside the bonnet have been removed.

  
  

  The helmet's brass ID plate has the number 604 stamped into it. The style of the ID plate and number places its date of manufacture to approximately 1913. On the bonnet neck ring, A. Schraders Son is stamped. The breastplate neck ring is stamped New York. This style of stamping is fairly unusual based on our experience.

  
  

  All diving helmets in this auction will be accompanied by a certificate of authenticity from Nations Attic. The certificate will have a unique number that will match the number on a tamperproof hologram decal placed inside the helmet. This information will be kept on permanent file at Nations Attic and help ensure the provenance of the helmet and authenticity. The display stand shown in the photos is not included. The option to purchase one after the auction will be provided.

  
  

  All items will be shipped with a signature required upon delivery and full insurance either via FedEx or the USPS Priority Mail. Worldwide shipping is available; however, no ocean freight will be offered on large items. DHL Express is an option for international shipments under 600 pounds via air. Payment via bank wire for customers outside the USA is required. A shipping quote prior to the auction can be provided by emailing your postal code. International bidders are advised that some countries do not allow the importation of knives. Nations Attic is not responsible for shipping charges going or coming back if your countries customs denies delivery. Rejected items can be consigned into a future sale as there are no refunds.

  
  

• Shipping Info

  • Shipping fees listed with each lot pertain to domestic shipping only (contiguous or lower 48). International bidders are subject to higher shipping fees. Please inquire about shipping to a particular country before the start of the auction. Purchased items will be shipped on a first paid, first shipped basis and may take up to twenty (20) business days for said shipment to leave our (Nations Attic, Inc.) business. For time sensitive shipments, we (Nations Attic, Inc.) will expedite payment processing and shipping for a nominal fee. Items paid for by personal check are subject to a ten (10) business day hold for funds clearance. All domestic mainland items are shipped via FedEx ground or via USPS unless otherwise specified or requested by the customer. International shipments are shipped via DHL Express or FedEx Express. USPS is no longer used for international shipments due to issues with tracking packages. Insurance: All items are insured for the full purchase amount less carrier shipping charges, or the maximum amount allowed by the carrier and/or country of destination. Insurance is included in the specified shipping amount listed in the shipping section of the final invoice pricing. All invoices are sent with insurance already factored into the shipping charge. The customer has the right to waive any insurance amount by providing written consent that the customer will not hold Nations Attic, Inc. or its shipping carriers responsible for damaged and/or lost shipments due to uninsured/under insured packages. In some instances, we (Nations Attic, Inc.) reserve the right to only ship certain items if insurance is purchased for the full amount of the item(s) being shipped. International buyers are responsible for all duties and taxes. If shipment is rejected, buyer is responsible for all return shipping costs or disposal fees incurred.

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