Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 1 6月 2025, 12:15
#
Posted: 1 6月 2025, 12:15
#
Добрый день.
Попалась вот такая монета с завышены весом я так понимаю ето на заготовке 50 копеек?
Только не понятен вес она намного больше весом?
Прошу помощи експертов?
Заранее спасибо за данную помощь и за ответ.
Хорошего дня всем
rsirian1
Joined: 20 11月 2020
Posts: 12954
Posted: 1 6月 2025, 14:11
#
Posted: 1 6月 2025, 14:11
#
It is too light to have been made from a 50 Kopeck planchet. What is the diameter? It also seems to be too heavy to be a normal 20 Kopeck coin. Numista has the weight as 3.4g but SCWC has 3.3g and my coin has 3.3 g. Your coin at 3.76g is 14% overweight, too high to be normal tolerance.
N#763
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 1 6月 2025, 19:19
#
Posted: 1 6月 2025, 19:19
#
Да она превышает номинал 50 копеек.ширина монеты такая же но толщину монеты на етой неделе дам знать нет чем проверть
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 1 6月 2025, 19:20
#
Posted: 1 6月 2025, 19:20
#
tokul
Joined: 5 7月 2022
Posts: 1093
Posted: 1 6月 2025, 21:27
#
Posted: 1 6月 2025, 21:27
#
50 kopeks are 15% thicker than 20 kopeks. It fits 3.7 grams, but there is no explanation why such overweight variants are not listed in catalogue that pays attention to design details.
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 13 6月 2025, 18:09
#
Posted: 13 6月 2025, 18:09
#
Добрый вечер.
Как обещял делать фото.
Сори что так долго, ждал прибор.
rsirian1
Joined: 20 11月 2020
Posts: 12954
Posted: 13 6月 2025, 18:27
#
Edited: 13 6月 2025, 19:11
Posted: 13 6月 2025, 18:27
#
Edited: 13 6月 2025, 19:11
Hard to tell, it that measurement on the rim or just off it?
My coin:
Weight 3.294g
Diameter 22.0 mm
Thickness center 1.17 mm
Thickness rim 1.30 mm
Year 1961
Condition some wear ~Fine
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 13 6月 2025, 18:42
#
Edited: 13 6月 2025, 19:33
Posted: 13 6月 2025, 18:42
#
Edited: 13 6月 2025, 19:33
А монета 20 копеек 1961 хорошая
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 13 6月 2025, 18:55
#
Posted: 13 6月 2025, 18:55
#
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 13 6月 2025, 18:57
#
Posted: 13 6月 2025, 18:57
#
За долгое время нашол одну только с таким весом.
rsirian1
Joined: 20 11月 2020
Posts: 12954
Posted: 13 6月 2025, 18:59
#
Edited: 13 6月 2025, 19:04
Posted: 13 6月 2025, 18:59
#
Edited: 13 6月 2025, 19:04
So 1.27 mm in center and 1.39 mm on rim.
Same answer I originally gave, too light (and small) to be a 50 Kopeck planchet and seems to be too heavy to be a 20 Kopeck planchet but I don't know the quality control of the mint there at that time so I can't say for sure.
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 13 6月 2025, 19:01
#
Posted: 13 6月 2025, 19:01
#
Вес монеты котой предоставил 20 коп 1982
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 13 6月 2025, 19:06
#
Posted: 13 6月 2025, 19:06
#
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 13 6月 2025, 19:09
#
Posted: 13 6月 2025, 19:09
#
rsirian1
Joined: 20 11月 2020
Posts: 12954
Posted: 13 6月 2025, 19:10
#
Posted: 13 6月 2025, 19:10
#
Maybe Ole can tell us the weight of his 20 Kopeck 1984? @Sjoelund
tokul
Joined: 5 7月 2022
Posts: 1093
Posted: 13 6月 2025, 19:17
#
Edited: 13 6月 2025, 19:29
Posted: 13 6月 2025, 19:17
#
Edited: 13 6月 2025, 19:29
1983 - 3.37g
1984 - 3.23g
1985 - 3.24g
1986 - 3.29g
1987 - 3.35g
1988 - 3.38g
1989 - 3.43g
1990 - 3.34g
1991 - 3.36g
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 13 6月 2025, 19:32
#
Posted: 13 6月 2025, 19:32
#
Ну да. Я думаю ето на заготовке 50 копеек
Sjoelund
Joined: 28 3月 2012
Posts: 15834
Posted: 13 6月 2025, 21:12
#
Posted: 13 6月 2025, 21:12
#
With pleasure, I haven't weighed all of them, but here are those with a weight!
Globetrotter
Coin varieties in French:
https://monnaiesetvarietes.numista.com
rsirian1
Joined: 20 11月 2020
Posts: 12954
Posted: 13 6月 2025, 21:21
#
Posted: 13 6月 2025, 21:21
#
Sjoelund
Joined: 28 3月 2012
Posts: 15834
Posted: 13 6月 2025, 21:28
#
Posted: 13 6月 2025, 21:28
#
I think, the OP's instrument is prone to the subjective reading of the micro meter. Use a digital instrument, please?
Globetrotter
Coin varieties in French:
https://monnaiesetvarietes.numista.com
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 14 6月 2025, 03:13
#
Posted: 14 6月 2025, 03:13
#
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 14 6月 2025, 03:15
#
Posted: 14 6月 2025, 03:15
#
Может кто знает как высчитать объем монеты на сантиметр кубических?
rsirian1
Joined: 20 11月 2020
Posts: 12954
Posted: 14 6月 2025, 14:30
#
Posted: 14 6月 2025, 14:30
#
Forget it. There's too much error associated with calculating the volume since the thickness is not uniform and not easily measured, the reeded edge is too complex to get an accurate volume, etc. If you want to measure the density do it right: https://en.numista.com/numisdoc/determining-the-metal-of-a-coin-27.html but you'll probably still be confused since experimental errors can be large such as using a very heavy glass cup and water 25 times the mass of what you're trying to measure.
Denysov
Joined: 6 3月 2024
Posts: 42
Posted: 15 6月 2025, 03:57
#
Posted: 15 6月 2025, 03:57
#
Спасибо большое за ответ. Какая цена такой монеты?