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An invitation to look more closely at something.

To select something cheap from his catalogue or website.

How about this?

Everything comes with a COA

First of all: SEM/EDS : Scanning Electron Microscopy with X-ray microanalysis

Then X-Ray fluorescense

Highly odd presence of chlorine and iron,

up to 15.9 wt% and 6.3% respectively

The 'patina' is artificial and was probably created

in a highly chlorinated environment.

Conclusions:

As the seller of these writes online.....

From the same supplier, the same workshop?

With acknowledgment and thanks to

Rachel Ellen Handel.

Worth reading the entire paper : it is much more detailed than I have extracted and shown HERE