That last coin appears to be a "railroad rim" at least that's what I've always called similar
US coins in the states AKA a partial collar but the collar die was at least partially on to keep the coin from going broad struck and spreading out. They are very desirable on our older Silver dollars, not sure of values on Aussie coin errors though. A neat error.
I think the first coin is Post Mint Damage, not caused by mint or in their control. You can see multiple punch marks and one was possibly filled with an acid?
"Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013!
ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector.
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http://goccf.com/t/140440
Edited by westcoin
06/29/2021 01:59 am