price difference

hi all, sorry for my ignorance, I just joined the site to get some clarifications. sometimes I saw the same coin for sale at the cost of the face value or a little more, in other cases with very different costs, but apparently the coins were the same, so I would like to better understand if it was a matter of "scams" or something else. In any case, in the meantime, I've been looking for some coins on this site. but example... in this case I was looking at the price of a coin ..... but in this case for the same coin I see 2001 M (mintage 259.100.000) and below I see 2001 M (mintage 49.426) how can I understand if my coin is part of the 259.100.000 ???? or if it is part of the 49.426 ??  thank you very much

 A link would have been helpful. 

N#87 

 But yes - if a coin was once in a set, and has now been removed and circulated, 

how would a member know which line it is? 

In this particular example you have a coin of a regular mintage, not the lower one. Since the coins is not in a set.

grazie per le risposte, chiaramente questa moneta era solo un esempio, ne ho diverse, alcune anche rare da trovare, volevo solo capire  come mai la stessa sigla e la stessa moneta avevano un prezzo diverso.

 Paying for the packaging. 

A circulation coin has face value.