Combine two pages

7 posts • viewed 45 times

This message aims at: requesting the modification of a coin in the catalogue

Status: Rejected
Upvotes: 0
Downvotes: 0
Ma9nWaRr10
Joined: 20 Jul 2017
Posts: 480
Posted: 17 Nov 2025, 16:29 #
Posted: #

I believe these two are the same coins:

N#19857

N#73302

rsirian1
Joined: 20 Nov 2020
Posts: 12936
Posted: 17 Nov 2025, 16:44 #
Posted: #

Different compositions.

Ma9nWaRr10
Joined: 20 Jul 2017
Posts: 480
Posted: 17 Nov 2025, 16:54 #
Posted: #

Oh, I didn't notice that. Since the composition is so much different, shouldn't the weight be also different then?

rsirian1
Joined: 20 Nov 2020
Posts: 12936
Posted: 17 Nov 2025, 17:02 #
Posted: #

Not if the thickness is different.

 

Density .500AG ~ 9.65 g/cc

Density .925 Ag ~ 10.38 g/cc

 

Ratio densities = 0.93  So if the thickness of the .500 is 2.7 mm then if the thickness of the .925 is 2.5 mm the weight is the same for the same diameter.

Idolenz Catalogue referee
Joined: 13 Jul 2013
Posts: 9573
Posted: 17 Nov 2025, 19:44 #
Posted: #

Or they could be exactly the same rim height and only the field height (relief) varies. With the lower density coin having a bit shallower fields.

rsirian1
Joined: 20 Nov 2020
Posts: 12936
Posted: 17 Nov 2025, 19:47 #
Posted: #

Idolenz

Or they could be exactly the same rim height and only the field height (relief) varies. With the lower density coin having a bit shallower fields.

Yes, of course. That makes more sense.

tdziemia Numista team
Joined: 26 Apr 2018
Posts: 4330
Posted: 17 Nov 2025, 22:02 #
Posted: #

Thanks, guys.  Closing this.

Status changed to Rejected (tdziemia, 17 Nov 2025, 22:02)
Reply
Forum »

» Forum policy

Used time zone is UTC+2:00.
Current time is 05:47.