Another article by Charles Lewton-Brain is available for on line reading.
The article titled "Some Notes on Depletion Gilding" is highly interested
and covers the chemical and historical aspects of depletion gliding.
Charles Lewton-Brain unique style of writing make it easy and fun to read.
Check it out at http://www.ganoksin.com/borisat/tip_sear.htm
More of Charles Lewton-Brain publications and VDO's are available
for purchase on-line at:
Dr. E. Aspler
Ganoksin Jewelry Co.,Ltd.
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