Counterstamps on their own should not have a page in the catalogue but counterstamped coins sure do.
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Did the counterstamp make the host coin into a new coin type? If so then why should it be deleted? Should the owner have to list his counterstamped Mozambique coin under the host coin listing? Maybe I am not understanding here. Has the counterstamp changed this coin from a different nation or denomination? Or is this more like a chopmark that serves as a guarantee of the coin? I'm just thinking if I have this coin...and it is legitimate countermark...then this listing is useful. The countermark is part of the new coin type design. So that is why the counterstamp is prominent in the photo. And if there is many different host designs than that is why the picture emphasises the design. I hope you would leave it until you find a referee that can clarify. Mozambique used to be a colony of Portugal. More than one Portuguese Colony issued coins with counterstamp. This listing makes sense to me.
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