Author |
Replies: 1,173 / Views: 134,295 |
|
Moderator
 Australia
16181 Posts |
Chinese cash coins such as the two pictured above have the square hole in them as part of their method of manufacture. These coins are cast, not struck, and are rough and sandy all the way around. The obverse and reverse have their high points smoothed on a lathe, then the coins are pushed onto a square-cross-sectioned steel rod so a whole bunch of them can have their edges lathed all at once to remove the casting sprues and other edge defects. A round rod wouldn't work for this purpose because the coins could simply rotate on the spot.
Chinese traditional beliefs subsequently gave the square-in-circle all kinds of mystical meanings, but the original purpose was purely practical.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
|
Pillar of the Community
 United States
4841 Posts |
Quote: i just want a coin with a hole for my collection. That shouldn't pose much of a problem. I plucked this group out of a few shops' junk/bargain bins just today. None duplicate (except by country of origin) any of those with which I started this thread.  
Colligo ergo sum
|
Valued Member
United States
337 Posts |
I saw a mention of the holey dollar. If you go that route, make certain you get the dump, the smaller coin that fits the hole. Australia has some commemorative ones out, the original used as a start for their coins are too rare.
|
Moderator
 Australia
16181 Posts |
Quote: ...make certain you get the dump, the smaller coin that fits the hole... Dumps don't actually fit inside the hole in Holey Dollars. That's because the Dump and the rim of the hole have both been struck after the Dump was punched out. The act of striking would have flattened the Dump, making it larger in diameter, while it would have made the hole diameter smaller. Of course, since Holey Dollars sell for about the price of a small house while dumps sell for about the price of a cheap car, anyone interested in Australian Colonial coinage who can afford to buy a Holey Dollar probably already has a Dump.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
|
Pillar of the Community
Australia
7619 Posts |
|
Pillar of the Community
Canada
2764 Posts |
japan 1741 with casting error 
|
Pillar of the Community
Australia
7619 Posts |
|
Moderator
 United States
14463 Posts |
From my Birth Year Set 1968 Fiji 1 Penny  1968 Japan 50 Yen 
|
Pillar of the Community
Thailand
1509 Posts |
|
Bedrock of the Community
Australia
21593 Posts |
Complete (short) type set of holed coins of Edward V111 (all 1936), issued for circulation: British West Africa: Penny, Halfpenny, One Tenth Penny East Africa: Ten Cents, Five Cents New Guinea: Penny Fiji: Half Penny (Seven types in all, none bear his image; there are some rare mule coins as well.)
Kutch (India), also issued non holed coins in the name of Edward V111, but they are epigraphic only, and do not bear his image.
|
Pillar of the Community
 United States
4841 Posts |
Just another of this genre that I ran across today in a coin shop's bargain bin....  
Colligo ergo sum
|
Bedrock of the Community
United States
20753 Posts |
Thanks for the info on holes, Sap. I always wondered why there would ever have to be a hole in a coin or token.
|
Bedrock of the Community
 United States
12308 Posts |
I have a (I believe) Danish 5 Kroner with a hole in it. It also has small hearts and some celtic-looking patterns. It's one of my favorite coins and I'll post a pic when I can.
|
Pillar of the Community
United States
4333 Posts |
Because they make great washers in a pinch!
When I listen to LED ZEPPELIN...so do my neighbors... Roll hunting since '77 Dirt fishing since '72
|
Pillar of the Community
Australia
3675 Posts |
|
|
Replies: 1,173 / Views: 134,295 |