Partial collar error?

1984worldcoins

So is this a partial collar error, on this 50 Pesos Mexico?

7Jaguars

Interesting coin there. Does the normal coin have a security edge? Sort of reminds me of some of the Straits Settlement & some other Br. colonial coins.

pruebas

No security edge.

Could have been mounted in something.

7Jaguars

I like to think I know a few things about coins but this one eludes me. It looks as though the reeding, such as it is, was applied and then the planchet only partially entered the strike "chamber". But how is there a central depressed area to the rim? Beats me, maybe Fred Weinberg would have the answer??

Greenstang

Is it possible that it was mounted in a bezel which would compress the rim.

1984worldcoins

Here is an image where is a similar damage presented as a partial collar error ( the one from the right), I could not find any other

1984worldcoins

another one

coinkat

@FredWeinberg

@MrEureka