Cartesian
·Here are some red flags: (i) the 'm' is missing the leading vertical stroke; and (ii) the initial stroke of the lower-case 's' does not go above the cross on the 't'.
And here are some further possible worries (perhaps due to lack of clarity in the pictures): (iii) there appears to be an inconsistency in serifs (e.g. the initial 'S' has them, but the ligature connecting that 'S' and the initial 'e' does not; and (iv) the first two strokes of the 'r' are not sufficiently sharp.