Recognise this coin Please?

Hello can you recognise this coin? I know its from Japan that's all Thanks in Advance


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In my Hartill catalog it's listed under Miscellaneous Items with the comment:
"It is not clear if these pieces are trails, amulets, or just fanciful inventions" so I would put it under exonumia.

Yours has the designation 7.41a
Obv.: Tempo Tsuho | Hyaku Mon Ban - Currency of Tempo | 100 Mon size
Rev.: Sen Za Mint | type a - dotted border

It's classified as ER (extremely rare) but I can't say anything about the authenticity of your item.

Can you also give us the dimensions and weight?

40mm/23mm and the weight i will try some how