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GreenSpirit | 02-10-2008 05:32 PM
Belgian 20 francs question I recently bought an 1875 Belgian gold 20 francs at about melt. The weight is spot on and the dimensions are right, but the color is a little less red/gold and a little more yellow than my Swiss and French francs. Anybody know why this could be? Could it be because of previous storage conditions? I've heard this can also occur with K-rands. Is that true?

Ivlianvs | 02-12-2008 03:52 AM
Re: Belgian 20 francs question These coins are 835/1000 gold. The color depends of the metal used in the remaining 175/1000.

Antonio | 02-12-2008 03:58 AM
Re: Belgian 20 francs question Quote:
Originally Posted by Ivlianvs (Post 964133) These coins are 835/1000 gold. The color depends of the metal used in the remaining 175/1000.
Are you sure about .835 gold?As far as I know all monetary gold is 90 to 91.6% or 22k(ducats are 23k). http://www.cruzis-coins.com/Gold/1878.html

Ivlianvs | 02-12-2008 06:51 AM
Re: Belgian 20 francs question Sorry, my mistake.... .835 was for silver coinage, .900 is the correct value for gold coins...

TomD | 02-12-2008 09:27 AM
Re: Belgian 20 francs question As long as the weight and dimensions are spot on--- If you look at a number of Krugs spanning over a number of years, there are color variations, copper, the alloying agent does oxidize. I just spent a while reading about the Belgium coins and their intentional size, weight and gold content similarities with the contemporary French and Austrian coins. All of the coins have .1867 troy oz gold but I didn't find any discussion of alloying agents or whether they were same between the coins.

HistoryStudent | 02-12-2008 06:56 PM
Re: Belgian 20 francs question Quote:
Originally Posted by TomD (Post 964357) As long as the weight and dimensions are spot on--- If you look at a number of Krugs spanning over a number of years, there are color variations, copper, the alloying agent does oxidize. I just spent a while reading about the Belgium coins and their intentional size, weight and gold content similarities with the contemporary French and Austrian coins. All of the coins have .1867 troy oz gold but I didn't find any discussion of alloying agents or whether they were same between the coins.
Good TRUE down-to-earth post. Copper does change the color a tad; see it in my KRUGS, EAGLES, SAINTS, LIBERTIES, and INDIANS - they are all 90% gold coins - some have copper spots too!

Baldwin | 02-12-2008 07:33 PM
Re: Belgian 20 francs question That's the beauty of old gold. I've got a George V sovereign (dated 1925) that's a beautiful, bright color. Then, I've got a French 20 franc from 1868 (Napoleon III) which has a rather beautiful orange-yellow. Appreciate the variety!

GreenSpirit | 02-12-2008 10:12 PM
Re: Belgian 20 francs question Quote:
Originally Posted by Antonio (Post 964135) Are you sure about .835 gold?As far as I know all monetary gold is 90 to 91.6% or 22k(ducats are 23k). http://www.cruzis-coins.com/Gold/1878.html
Antonio, Thanks for the link. Interestingly enough, it says they are .900 gold and then says their composition is .9166. I've seen this description elsewhere too, but didn't understand it.. French francs they describe as .900 gold with .900 composition. hmmmmmmm.... damned Belgian magicians! :banghead: Thanks for your help. :D

GreenSpirit | 02-12-2008 10:22 PM
Re: Belgian 20 francs question Quote:
Originally Posted by Baldwin (Post 965382) That's the beauty of old gold. I've got a George V sovereign (dated 1925) that's a beautiful, bright color. Then, I've got a French 20 franc from 1868 (Napoleon III) which has a rather beautiful orange-yellow. Appreciate the variety!
Geez, I thought I saw on Youtube where you got rid off all that stuff and were getting into mutual funds. And into Hillaroid, too. Or is that just what you told Dr. Jenkins? :D

Antonio | 02-12-2008 11:20 PM
Re: Belgian 20 francs question Quote:
Originally Posted by GreenSpirit (Post 965652) Antonio, Thanks for the link. Interestingly enough, it says they are .900 gold and then says their composition is .9166. I've seen this description elsewhere too, but didn't understand it.. French francs they describe as .900 gold with .900 composition. hmmmmmmm.... damned Belgian magicians! :banghead: Thanks for your help. :D
It`s strange how 22k monetary gold is described as either 90% or 91.6% which it should be.I think some Napoleonic francs are underkarated and are probably 20k,I have a gorgeous 40 franc from 1813 and the color is different from that of a sovereign or other 22k coins.It looks more towards 18k but probably is 20k(I doubt Napoleon was that blunt as to use 18k).

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