Need Finland Help. 1953 5 Markkaa

Says there is an "iron" example and "nickel plated iron" examples of this coin. Same weight and diameter. So how do you tell the difference?
One seems to be valuable!


Thanks

The colour.

This coin is extremely easy to counterfeit in your very own kitchen so I doubt that there's much demand for it.

Mine just looks very shiny for "iron".

Thanks for the info. I need to find another to compare colors!

Цитата: "HoosierCTX"​Mine just looks very shiny for "iron".
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​Thanks for the info. I need to find another to compare colors!

​http://www.kerailyraha.fi/verkkokauppa/shop.php?sivu=tuote&tuoteid=11520
The seller states that he can't guarantee the authenticity of this nickel plated coin, finnish coin dealers always guarantee authenticity.
http://www.kerailyraha.fi/verkkokauppa/shop.php?sivu=tuote&tuoteid=22682
This is what the iron coin looks like.

Looks like the iron has a "darker" look it. The nickel looks more like a dull "silver"?