Duplicate Costa Rican listing, KM#176 & KM#182 [Risolto]

Hello all,

In the catalog there are two listings for Costa Rica 50 Céntimos from 1948:

https://en.numista.com/catalogue/pieces9389.html
https://en.numista.com/catalogue/pieces54603.html

In the second listing there is a note that in previous versions of Krause, the 1936 and 1948 listings were listed separately. I assume that was the reason for the split.

Unless there is a notable difference between the coins, I believe that the owners of KM#182 should be moved to KM#176 with a note stating the merge in reference numbers.

Edit: With further investigation, was determined that the owners of 1948 for KM#176 should be moved to KM#182. Thanks to Essor Prof for his measurements.

It looks like there is a difference in the weight. The KM#176 is listed as 6.10 grams while the KM#182 is listed at 6.89 grams.

I have a 1948 coin that weighs exactly 7.00 grams. I use a calibrated digital scale.

Does anyone have a 1937 or 1948 with a different weight.

I also noticed that the KM#176 coin is listed as being minted by the Royal Mint, London. A mint is not listed for the KM#182.

I own the 2019 (46th) edition of Krause, and there's only one coin in it, the KM# 176

I can't see any difference between the two dates, although we have images of 1948 in both entries but you can see the 1937 here. I'd say KM has eventually got it right. A bit more work might be required to establish the correct weight, though.

There is not only a difference in weight but also in diameter. My 1937 coin is exactly 25.00 mm in diameter, like the data on the coin page KM# 176 says while my 1948 coins are 25.98 mm, 26.00 mm and 26.02 mm, average 26.00 just like the data on the coin page KM# 182 says.
Weight for my 1937 coin is 6.21 g while my 1948 coins are 6.81 g, 6.92 g and 6.96 g, average 6.90 g. Both data are consistent with the data in our catalogue for the respective KM#.



Weight and diameter differ, so the listings should not be merged. However, the 1948 year line on the KM# 176 should be deleted and the owners merged with the KM# 182 year line. But who's going to do that now Cyrillius is gone (as master referee)?
In the past the 1937 and 1948 were always separated, only in the last editions they were merged. That's probably how the 1948 year line ended up here in our KM# 176. But I'm pretty sure there's no 1948 with the weight and diameter as the 1937!
I'll also make a change request to replace the 1948 pictures for the 1937 pictures to avoid more confusion.

Typical, KM get it right, then change it! This document describes the production of the 1948 50 céntimos on pages 54 and 55. The weight should be 7.00 g. Many thanks Essor Prof. Just goes to show, it's always worth checking things properly.

Thank you all for your input. I agree the 1948 owners should be moved to KM#182.

Seems right:

1937 km176 6.03 gr 24.98 mm diam
1948 km176 6.89 gr 26.09 mm diam

those are the measures of my two coins!

Cita: "Some_Nerd"​Thank you all for your input. I agree the 1948 owners should be moved to KM#182.

​Totally agree. I just wonder when it will happen now Cyrillius is gone.

Fixed, thank you all for input!

Hello,

Thank you for your assistance. However, the owners of the specimen issue for 1948 need to be moved from this page to this page.

Cita: "Some_Nerd"​Hello,
​
​Thank you for your assistance. However, the owners of the specimen issue for 1948 need to be moved from this page to this page.

​It's done for this line.

Thank you very much!