The pitch of screw gauge is 1 mm and its circular scale is divided into 50 divisions. When nothing is put between the studs ${44}^{th}$ division of circular scale coincides with the reference line and circular scale lies between $3^{rd}$ and $4^{th}$ division of main scale. When a glass plate is placed between the studs, the circular scale lies between ${13}^{th}$ and ${14}^{th}$ division of main scale and circular scale reads 26 divisions. The thickness of the plate is 2.41 K (in mm). Find the value of K.