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Even The Online Resources And Catalogs Get It Wrong

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Pillar of the Community

United States
1910 Posts
 Posted 02/03/2024  5:12 pm Show Profile   Bookmark this topic Add Albert to your friends list Get a Link to this Message Number of Subscribers
We sometimes see members post Chinese coin images for ID that are upside down. It's not unusual if not experienced.
We may rely on published books, auction records, and online resources to identify coins.
In the case of some Tibetan coins it can be hard to know which way is up?
If just learning, it's important to get it right to know the date.
In this case when using Numista the reverse of a 5 Sho coin having the cycle and year is shown upside down.

Even-The-Online-Resources-And-Catalogs-Get-It-Wrong
Valued Member
OzLeigh's Avatar
Australia
215 Posts
 Posted 02/04/2024  04:00 am  Show Profile   Bookmark this reply Add OzLeigh to your friends list Get a Link to this Reply
Yes, you come across a lot of weird things on Numista. Do you really think this 1oz gold coin from Cuba has a diameter of 15mm? It must be extremely thick

https://en.numista.com/catalogue/pieces257940.html

Or this 2023 100 euro gold coin from France (31g, 15.55mm):

http://en.numista.com/catalogue/pieces374932.html

I suspect it is supposed to be a half ounce coin because the 50 euro coin from the same series weighs 7.78 grams with diameter of 22mm
Edited by OzLeigh
02/04/2024 04:20 am
Pillar of the Community
triggersmob's Avatar
Australia
9357 Posts
 Posted 02/04/2024  04:16 am  Show Profile   Bookmark this reply Add triggersmob to your friends list Get a Link to this Reply
I remember seeing one coin with a diameter of over 2000mm. They missed the decimal point.
Pillar of the Community
United States
1910 Posts
 Posted 02/04/2024  06:05 am  Show Profile   Bookmark this reply Add Albert to your friends list Get a Link to this Reply
I use Numista quite often.
While much is good info, and helps a lot, there are a few times when something is at odds.
So extra steps are needed to get things right before I embarrass myself by publishing wrong data in the coin project album pages.
Valued Member
United States
257 Posts
 Posted 02/04/2024  08:06 am  Show Profile   Bookmark this reply Add bjherbison to your friends list Get a Link to this Reply
If you use Numista you should fix those changes when you see them. It's easy to create an account and propose changes.
Pillar of the Community
Portugal
655 Posts
 Posted 02/04/2024  12:43 pm  Show Profile   Bookmark this reply Add jecz79 to your friends list Get a Link to this Reply
Numista is kind of a wiki, uses public contributions. It is as bjherbison says.
I only hope they remain an open site. These things sometimes go commercial and close access after collecting contributions. It looks like the most extensive web site now.
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tdziemia's Avatar
United States
7933 Posts
 Posted 02/04/2024  5:07 pm  Show Profile   Bookmark this reply Add tdziemia to your friends list Get a Link to this Reply
Thanks for pointing those out OzLeigh. I've contacted the editor responsible for Cuba suggesting a correction. Will do the same for the French type.

Every catalog has good and bad features, and crowdsourcing has its own issues. As bjh says, everyone can help when they see a mistake.
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BStrauss3's Avatar
United States
4587 Posts
 Posted 02/04/2024  5:59 pm  Show Profile   Bookmark this reply Add BStrauss3 to your friends list Get a Link to this Reply
"Yes, you come across a lot of weird things on Numista."

"If you use Numista you should fix those changes when you see them. It's easy to create an account and propose changes."

Yep. It's crowd-sourced. A couple of years back I bought a Titanium variety of a coin at a show from The Royal Mint that wasn't in the catalog. I took pictures and uploaded the data from the show floor. By the time I returned to my hotel room, the coin was added.
-----Burton
50+ year / Life / Emeritus ANA member (joined 12/1/1973)
Life member: Numismatics International, CONECA
Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club
Owned by three cats and a wife of 40+ years (joined 1983)

Author: 3rd Edition of the Sample Slabs book, https://www.sampleslabs.info/
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