Jump to content
  • The above Banner is a Sponsored Banner.

    Upgrade to Premium Membership to remove this Banner & All Google Ads. For full list of Premium Member benefits Click HERE.

  • Join The Silver Forum

    The Silver Forum is one of the largest and best loved silver and gold precious metals forums in the world, established since 2014.ย Join today for FREE! Browse the sponsor's topics (hidden to guests) for special deals and offers, check out the bargains in the members trade section and join in with our community reacting and commenting on topicย posts. If you have any questions whatsoever about precious metals collecting and investing please join and start a topic and we will be here to help with our knowledge :)ย happy stacking/collecting. 21,000+ forum members and 1 million+ forum posts. For the latest up to date stats please see the stats in the right sidebar when browsing from desktop. Sign up for FREE to view the forum with reduced ads.ย 

Same Coin Different Niton XRF Machine Test Results


LawrenceChard

Recommended Posts

Same Coin Different Niton XRF Machine Test Results

We recently bought this very worn 1907-L gold sovereign in as scrap.

Scrap-EdwardsVSVII1907Sovereign-KSrequestReverseCROP.thumb.jpg.2271fb028cba05b5d978ceef43580360.jpg

Reverse above, Obverse below:

Scrap-EdwardsVSVII1907Sovereign-KSrequestObverseCROP.thumb.jpg.b05a2fba3f99918442a291bdfd131521.jpg

Staff suspected it was fake, so we tested it:

266936544_1907Lsovereignwornsuspectnitontestourmachine.thumb.jpg.0fa8ae0145bd94b9de7f31a9a2920599.jpg

The gold content shown is too low, but there is an anomaly.

Thee is a significant amount of platinum showing, 12 and 7 parts per thousand respectively. I have seen similar reading before, and suspect it is a glitch with our machine, probably in the algorithm which tries to interpret the raw data. Sometimes a re-test gives a "clean" result, often after a quick recalibration, which we did not perform at the time.

In one sense, it was not important to know whether this coin was fake or genuine, because it was so badly worn, we were only ever going to scrap it, but in another sense, it is usually worthwile trying to learn to distinguish fakes.

I was shown the coin, for my opinion, and I believe it is genuine.

It just so happened that our own Niton machine had been packed up ready to be sent for its (very expensive) annual service, so we had a newer looking loan machine.

I re-tested it, with these results:

1564644280_1907Lsovereignwornsuspectnitontestloanmachine.thumb.jpg.b1f22b118a838524809c7af06aac6077.jpg

You can see that the reported gold sontent is slightly higher, although still a tiny amount short of its expected range.

Our staff wtill wanted my opinion on whether it was fake or genuine.

I still believe it is genuine, but with a coin so worn, it may be almost impossible to be certain, and ultimately not worth investing too much time and effort on.

It did decide that we should invest a little more resource into photographing it, for the educational value.

These photos must be some of the best photos ever taken of such a bad coin!

๐Ÿ˜Ž

Chards

Link to comment
Share on other sites

1 hour ago, LawrenceChard said:

Same Coin Different Niton XRF Machine Test Results

We recently bought this very worn 1907-L gold sovereign in as scrap.

Reverse above, Obverse below:

Staff suspected it was fake, so we tested it:

[ . . . ]

The gold content shown is too low, but there is an anomaly.

Thee is a significant amount of platinum showing, 12 and 7 parts per thousand respectively. I have seen similar reading before, and suspect it is a glitch with our machine, probably in the algorithm which tries to interpret the raw data. Sometimes a re-test gives a "clean" result, often after a quick recalibration, which we did not perform at the time.

ย 

ย 

Well, clearly somebody has gotten traces of chocolate on it.

The Sovereign is the quintessentially British coin.ย  It has a German queen on the front, an Italian waiter on the back, and half of them were made in Australia.

ย 

Link to comment
Share on other sites

5 hours ago, Silverlocks said:

ย 

Well, clearly somebody has gotten traces of chocolate on it.

ย 

1 hour ago, MonkeysUncle said:

I was suspecting it had spent most of it's life hiding in a gravy jug. How many burglars target gravy jugs?

It has probably been in jewellery, but possibly somebody's "pocket piece"!

๐Ÿ˜Ž

Edited by LawrenceChard

Chards

Link to comment
Share on other sites

14 hours ago, LawrenceChard said:

ย 

It has probably been in jewellery, but possibly somebody's "pocket piece"!

๐Ÿ˜Ž

Can I suggest you might want to start storing your sovereigns and chocolate coins in separate containers?

The Sovereign is the quintessentially British coin.ย  It has a German queen on the front, an Italian waiter on the back, and half of them were made in Australia.

ย 

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
ร—
ร—
  • Create New...

Cookies & terms of service

We have placed cookies on your device to help make this website better. By continuing to use this site you consent to the use of cookies and to our Privacy Policy & Terms of Use