JC and Stuff
196 subscribers
11:40
Testing 1/2 oz Gold Krugerrand coin various ways including ultrasound thickness gauge
JC and Stuff
2K views • 3 years ago
10:38
How to calculate the density of gold alloys or any metal alloy using a mathematical equation.
JC and Stuff
5.3K views • 3 years ago
15:01
The Australian Gold Nugget Coin
JC and Stuff
1K views • 3 years ago
13:36
Is this Canadian Maple Leaf gold coin real?
JC and Stuff
16K views • 3 years ago
15:05
Ultrasound thickness gauge testing of platinum, silver, and other materials. (part 2) #ElpidanET400
JC and Stuff
203 views • 3 years ago
14:05
Ultrasound thickness gauge testing of platinum, silver, and other materials.#ElpidanET400 (part 1)
JC and Stuff
686 views • 3 years ago
14:53
Is my 50 pesos Centenario gold coin real? (Gold coin testing methods)
JC and Stuff
23K views • 3 years ago
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