1856 Guanajuato and 1842 mexican coins 0

[Randolf1]

Can someone take a gander at these? I imagine they are not super valuable but I am unsure. I also noticed a raised bump on the 1956 coin. I couldn't find one online with a similar blob. Would this be an error? Could it make it more valuable/unique by any chance?

Thanks in advance

Edited September 4, 2019 by Randolf1

[Conder101]

Pictures aren't the best, no weights given.  Might be fake, don't think the lump is an error.

Edited September 4, 2019 by Conder101