KOTCT

Castle Courtyard => Exonumia for Exonumist => Topic started by: NoHope587 on October 09, 2012, 07:04:43 AM

Title: Altered Farthing.
Post by: NoHope587 on October 09, 2012, 07:04:43 AM

Altered Farthing.
I had a custom order for a UK Farthing I think it came out pretty well;  here it is fresh out of the plating tank waiting its final polishing.


(http://www.mycoins.us/forum/Sales/OCT12/IMG_1386.JPG)

Title: Re: Altered Farthing.
Post by: Nevol on October 09, 2012, 07:29:24 AM

You must have heaps of patience plus a very steady hand.  Nice job!  ;D

Title: Re: Altered Farthing.
Post by: Triggersmob on October 09, 2012, 10:32:55 AM

I bet that won't be cheep.

Title: Re: Altered Farthing.
Post by: Goose on October 09, 2012, 02:35:56 PM

That looks great.

Title: Re: Altered Farthing.
Post by: Templar on October 09, 2012, 09:56:03 PM

WHAT A GREAT JOB--MY HANDS COULD BARELY PICK UP THE COIN LET ALONE CARVE IT-VERY STEADY HANDS---YOU WOULD MAKE A GOOD BARTENDER

Title: Re: Altered Farthing.
Post by: Paint Your Wagon on October 10, 2012, 12:56:18 AM

Wondefull

What kind of plating do you use ? Electrolitic gold plating ?

Title: Re: Altered Farthing.
Post by: NoHope587 on October 10, 2012, 06:05:29 AM

Quote from: Paint Your Wagon on October 10, 2012, 12:56:18 AM

Wondefull

What kind of plating do you use ? Electrolitic gold plating ?

Yep pickle the coin in acid to clean it
Then Attach scrap gold to one electrode and the coin to the other  place in tank with plating solution and apply voltage. Around 1.2 volts works best for an even coat.  4 to 5 volts will flash plate but not very well.
Lots of nasty Chemicals involved including cyanide so not the kind of thing you want to dabble in. Will be attempting to make aqua regis, or nitro-hydrochloric acid next as it will hold gold in suspension and allow better plating.

Title: Re: Altered Farthing.
Post by: Paint Your Wagon on October 10, 2012, 08:19:14 PM

I had a demonstration of electroplating a circulation coin in 3 minutes

They used acetone to degrease the coin and then a secret colloidal gold soulution
The plating was beautifull but only a few microns thick