First one means "moving coil".
1.5 is probably 1.5% accuracy, although I'm not sure.
The last one is orientation of calibration (and expected use orientation). That specific means that it was calibrate in horizontal orientation.
Those symbols are universal, but I'm failing to find a complete table. There is one that google images comes up with, but it is in German.
EDIT: It looks like they are universal to a German DIN standard, which explains information in German. Although Soviet meters had similar markings.