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I thought I would start a new topic as I have been posting quite a bit across the boards on Errors and Variants of the modern Decimal Penny. I started to put together a concise set of pennies a few months ago as an add on to my pre-decimal penny colection. I also took inspiration from Dave G's decimal penny survey done back in 2013 and have used that as a starting point. I have found quite a considerable number of new varieties and also some nice anomalies. This first post is one such anomaly. I have found two 2007 pennies both with a filled link in the portcullis chain. The two also have identical die cracks coming of the P, E and first N of PENNY. I know that i once read a post were Rob was able to calculate the amount of effected coins that could have possibly come from a defective die. Would love to know if it is possible to do the same with modern decimal pennies. Anyway here are a few pictures. Coin A shows the errors the least and the pictures dont show the errors as well as a Magnifying glass. Coin B shows the die cracks and fill much clearer

Dave they would not retone it without looking different it would be similar to putting in a purple dip I have had numerous dates 1932/37/48 that are different in colour (Purple) i have sold, some described afterwards by dealers as mint toned. Pete.

Here's a simple question. Can hypo, which is Sodium Thiosulphate and thus interacts with copper to produce Copper Sulphide, be used to re-tone cleaned coins quickly?

Thats a good start would just use a gentle pick with some vaseline in a tiny amount now on the green bits Even a gentle bit of persuasion with vaseline and a lint free cloth and then a quick dip in distilled water and a tiny amount of extra virgin olive oil. Hat off

The fifth article, in March 2016's Coin News, contains the following reference: ".....the less scarce 1934 penny which is notable for being issued with the lustre 'mint toned' - not dark as with farthings between 1897 and 1918, but a dull reddish colour achieved using sodium thiosulphate ("hypo")." And that's all she wrote.....

Considering the amount of wear, it's surprisingly good! Good edges & no nicks, dings or scratches.

Fantastic job and hat off to you Brian you have a lot more patience than me and a good eye. Pete.

Here is a picture of both coins