Small German Gem scale
Pic Beam 15

The small wooden case measures only 
6.9 cm wide, 3.9 cm deep and 2.2 cm high

The bans of the scale are silver plated

The 5 round knobbed weights are:
2 gram = 10 carat
1 gram = 5 carat
0.4 gram = 2 carat
0.4 gram = 2 carat
0.2 gram = 1 carat

under the round lid are some part weights
from 1/100 to 50/100 carat