Ruban, Kratkaia letopis Malaia Rrossiia, 1777 (И5)

The 6 in the headline’s 1736 and the 6 in the same date in the third line of the text both are missing the same area of print on the bottom of the number. It can’t be the same piece of type, since both 6s need to be in the forme simultaneously. But perhaps the matrix used to cast the 6s in this font didn’t have a deep enough strike to cast the number correctly.