Johnson Matthey 100 oz Silver Bar

A Hallmark That Stopped Being Made

The Johnson Matthey 100 oz Silver Bar carries a refiner’s mark that no longer goes onto new bars. Each one holds 100 troy ounces of .999 fine silver, poured rather than struck and now sold on the secondary market. What you are paying for is the silver and the name on it.

Johnson Matthey Before Asahi

Johnson Matthey was founded in London in 1817. In 2015 it sold its gold and silver refining operations to Asahi Holdings, and the bars that carry the JM hallmark today were made before that sale. The supply is whatever already exists, and the name draws a higher premium than a generic bar of the same weight. The name is the difference, since the silver is the same .999 fine as any other 100 oz bar.

What Is on the Bar

The front carries a diamond-shaped cartouche near the top, with the JM monogram and a pair of crossed hammers inside it and JOHNSON MATTHEY around the border. Near the base the bar is stamped 100 OZ. and 999, beside an oval assayer’s mark. Some bars carry a serial number and some do not. The back is the poured surface left as it cooled, with pitting, small voids and irregular flow lines, and no two bars look alike. The back is unfinished, and yours will not match the photograph.

Used, Poured, Dealer’s Choice

These are secondary-market bars, listed as used. They have been stored and handled over the years, so expect toning, scratches, handling marks or a hazy surface. The serial number, the hallmark variant and the condition cannot be selected. None of it changes the silver, since the weight and fineness are stamped on the bar. Condition reflects age, not the metal.

Johnson Matthey 100 oz Silver Bar Specifications

Each bar holds 100 troy ounces, or 3,110.35 grams, of .999 fine silver. The condition is used and the dimensions vary from bar to bar. One hundred ounces, poured, with the surface left as the pour made it. Full current specs are on the Specifications tab above.

Johnson Matthey 100 oz Silver Bar FAQ

Does Johnson Matthey still make silver bars?

No. Johnson Matthey sold its gold and silver refining operations to Asahi in 2015. Asahi now makes 100 oz bars of its own that look similar. JM bars are legacy stock, made before the sale.

Will my bar have a serial number?

Maybe. Some Johnson Matthey bars carry one and some do not, depending on the production run, and serial numbers cannot be requested on this listing. A serial is not promised, so buy this bar for the hallmark and the silver.

What condition are these bars in?

Used. Toning, scratches, handling marks and surface haze are normal for a bar that has been through the secondary market. Cosmetic wear only, since the weight and fineness stamped on the bar do not change.

How heavy is it?

It holds 100 troy ounces, which is 3,110.35 grams, or just under seven pounds. Just under seven pounds, so lift it with both hands and store it on something that can take the weight.

How does a bar this size ship?

It ships insured. All orders of $500 and over require a signature on delivery, which covers this bar. Delivery to a PO Box is not always possible, and value or weight limits can require a street address. A signature is required, so arrange for someone to be there.

Want a current-production 100 oz bar instead? Browse our full 100 oz Silver Bars selection.

Ready to add a piece of legacy Johnson Matthey silver to your stack? Add the Johnson Matthey 100 oz Silver Bar to your cart.