having an issue with Peru 10 soles 1979 km 272.2 [решено]

http://en.numista.com/catalogue/pieces992.html


are catalogue has this coin smooth edge, weight 5.6 g, thickness 1.5 mm

I have two coins. One is a flat edge, weight 5.53 g. , thickness is 1.7 mm. With a wider edge.
number two has round edge, weight 5.38 g. thickness 1.68. With a narrower edge.
coin one

flat edge,5.53g,thickness 1.7 g, wider edge

coin two

round edge,5.38g.thickness1.62,narrow edge


coin one is on top. coin two bottom. You can see coin one is flat were coin two is round edge.

coin one
coin two


coin one on left, coin two on right. You can see coin one edge is wider

Is this normal for Peru coin of this time?
your thoughts thank you and have a nice day daryl

Hi Allred1950,

Peru was politicaly and economicaly in bad shape in the late 1970ies and the 1980ies. For the same reason, minting quality was quite bad in the Lima Mint; blanks were also not "first choice" and differences in weight were not uncommon.
The following coins came into my collection directly after having been released, and you can see the bad quality and weak stroke - and the apparent difference in the edges.




Real varieties ? I don´t think so.

Hi Christianvl
Thank you for the answer. I was thinking that but was not sure. You take care and stay safe.
daryl