Rare 'US Standard'  Antique 

9 ~ Piece Assay Gold Jewelry

Testing Needle Set 

with Stone 

c1800's

This c1800's is a RARE ANTIQUE  Set of 9 needles for Gold Testing 

with Black Touchstone 

This set includes 9 needles: marked with the following: 

U.S. Standard 20, 18, 16, 14, 12, 10, 8, 6, and 4.

These needles are a vintage method of testing gold for karat purity. 

The tips of the needles are each a known samples of gold. 

Then each known sample would be rubbed down the black touchstone. 

An unknown gold sample would also be rubbed down the length of the touchstone and compared to the known karat samples. 

The samples would be compared, 

making it possible to identify the karat of the unknown samples 

via the acid testing. 

This method of testing is/was utilized by Jewelers 

to ascertain the karat of Gold jewelry. 

This fantastic US Standard Antique 9 ~ Piece Gold Acid Testing Needle Set 

was used by a Jeweler in his Jewelry & Watchmaking  business. 

However, this Gold Testing Set was from his father, also a jeweler. 

The Watchmaker is currently 89 years old. 

This US Standard Antique Gold Testing Set is in fine estate condition. 

I do not know the date of manufacture, but it is from the 1800's. 

The needles have a great deal of oxidation 

which is commensurate with an 1800's antique piece

& a lifetime of use. 

The gold tips are in fine condition. 

There is a bit of wear to the 10k & 14k tips. 

The 9 needles Test Gold from 4k to 20k. 

The karat markings are quite visible on each of the needles. 

This Rare Antique 1800's Gold Acid Testing Needle Set & Black TouchStone 

could be an addition to your Jewelry business 

or your antique jewelry tool & accessory collection. 

This set would also be an ideal addition to an assay collector. 

Whichever purpose, it would be a fantastic antique piece to own. 

This Antique US Standard 9~Piece Gold Acid Testing Set & Stone 

and additional Jeweler & Watchmaker Tools & Accessory 

Listings are from a retired Jeweler / Watchmaker. 

He is 89 years old and has decided to part with the many 

Jewelry & Watchmaking tools that he has had for his career 

& in many cases his & his Father's lifetime. 

Many of the hand tools were his father's Jewelry & Watch tools from the 1800's.

 This Watchmaker repaired his first watch when he was nine years old 

and eventually had a well established 

& successful business in Pennsylvania.

I will be listing most of his tools shortly. 

Please check my eBay store for additional listings. 

If you are looking for a particular Jewelry or Watch tool,

please send me an email, he/I may have it.

Thank you for looking.

If you have any questions please do not hesitate to send me an email.

Also, please stop by my new eBay store:

New and Old Cherished Treasures.