Russia 10 kop 1760 and 5 kop 1796

Hi

I am simply asking whether these two pieces may be genuine (wish full thinking dies always last):

     1. Russia 10 Kopeks 1760, 41.0 grams, cca 44 mm diameter and 3.5 mm width:

     2. Russia 5 Kopeks 1796, 41.3 grams, cca 44 mm diameter and 5.5 mm width (uneven width, fat in the middle):

thanks