I store all my coins in a 2*2 coinholder (spaled version, not the airthight selfsealing version). For my main collection, everything is stored...
According to Krause 2008, the 10000 lira piece with the head of Ataturk is minted - from 1994 to 1997 on a 9.75 g Copper-nickel-zinc planchet...
http://cgi.ebay.com/DEM-CONGO-LEOPOLDVILLE-10-FRANCS-1965-ESSAI-BU-RARE-/150519803248 This is not thesame coin. If you look to the pics, you...
This piece was minted at 100.000.000 pieces, but the bigger part was remelted at the the Burssels Mint. The piece exists in 3 different...
German coins This is actually a 1 mark piece, dated 1983 with a weight of approximately 5.5 grams, a diameter of 23.5 mm and struck in...
PMD or packaging issue??? I noticed this picture and I should say that I boldly agree with PMD. However, if you understand the base of this...
France Vichy coin The coin that you showed is a Vichy French State issue franc. This means that the coin was minted by the war government of...
Thank for your quick and helpful reply!
According to Krause edition 2008 and according to Numismaster, this coin has a diameter of 21 mm and weighs 4.5 g. My piece however is 23.98 mm...
Proof coins? To be able to spot proof coins, you should know a lot of things: 1. The difference between a regular minting process and a proof...
Thx for the quick help. It really confirms my thoughts about the change in metal and the error in Krause.
While researching a collection I bought, I found this Fiji 2 cents 1990 that only weighs 3.2 gram. According to other similar pieces and according...
Some background on the belgain holed coins. Actually at that time, Congo was still a colony of Belgium. It was for Congo that the Belgian Mint...
The left coin is France, 10 centimes, year 5 minted in Paris (mint mark A) The right coin is France, 5 centimes, year 5 minted in Rouen (mint mark...
The french 1941 50 centimes exists in 2 different materials: aluminum-bronze (82 958 000 pieces, F0.15 VF0.25, XF1.00, UNC 3.00) and pure aluminum...
These are all pieces of 1 baht registered under Y#183 with on the obverse the figure of Rama IX and on the reverse the royal palace. The first one...
Thanks for the explanation! I have learnt a lot...
And this bronze plating is done by the US mint? Or is it done after the minting? Are your pieces also thesame weight als the normal ones?
I have found two different USA cents dated 1997 and bearing mint mark D. One of two is the normal copper color, but the other is clearly more...
In thesame collection, I also found this coin: a USA cent dated 1985. Before the buste of Lincoln, an additionnal point is present, as well as on...
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