i believe that they are in good shape but i know for sure that such big coins are so rare in good condition!!
so i believe that they are only in VF grade or bit better.
XF and UNC coins are quite expensive: 77-78 xf=cca 100$ unc=350! 95 no such coin with this date. if you have it you are very lucky if it is real one!
it is better to find some smaller coins 1 and 2 pesetas because there is more chance to get them in better condition and they have greater prices!!!