Found Some!

There's a couple things to look for on 2007 20c's. On the Obverse (Queen side), look for a difference in the downstroke of the 7 in the date, thick or thin. On the reverse (Platypus side) look for an almost missing claw on the outside platypus' foot. I'll try & put up some images tomorrow so you know what you're looking for.

The coin with the ridge running around the edge might be your best find so far. It's possible that it could be a reasonably unusual error where the coin is struck partially out of the collar. A close up of the edge of the coin might make identification of the error a bit easier. Is any of the reeding missing?

Some info and pictures can be seen here:
http://www.australian-threepence.co...-errors.html

The rim looks pretty high on that one. Almost like a small ramstrike.

Hello Candace I have 2 x 2007 20 cents here in front of me.

The edge is reeded but appears to have been reeded over the top of a lightly struck centre ridge. (very light)

The 2 coins are 5 mm thick and appear to be equal so 2.5 mm thick each.

Is that even possible? A normal 2004 20 cent. I have seen any as of yet :(

Here are a couple of photos of the 2007 thin 7 and thick 7. You can see that the downward stroke of the thin 7 appears slightly longer than that of the thick 7.

Thank you for the pic's of 2007 eccentric ill have to have a close look to see if thats what I have =D also nice pic's how do you get your coins so lovely and clean admittedly I'm dogie =/ I dont know how to so I just try and clean with soap and water =0

Wise words from erkle

The 2007 coins are UNC - that's why they appear so clean. I agree with the others - don't routinely clean coins. However, having said that, there are times when a light wash is needed. I have been known to use hot water and detergent to remove dirt. Just a light rub with the fingers usually does the trick. The problem with using this method on some coins, however, is that you often remove the toning or patina that gave the coin its original appearance. What you can end up with is a coin that looks a lot worse that it did before the clean. It's amazing what a bit of toning can conceal - fine, hairline scratches can suddenly appear from nowhere. I must confess to having spoilt a few coins by trying to improve their appearance! I don't do it any more.