As a starter, the first line of the first picture reads “Sultan Sulayman” and the bottom reads “struck in Qustantiniyya” (= Istanbul). I think the year is AH 1260.
Yes, pending weight and diameter. I don't know whether there are multiples.
Of course the two coins are not identical, but the text is the same. So, from different dies.
Now the coin page says “ND” = “no date” which is true since there is only the accession year. For most Ottoman coins, there is both the accession year and the actual regnal year.
