"Pocket Letter Scale In Glass Tube On Spring With Chrome Case "
Here is an original device for weighing small weights presented in a glass tube. On one side, a ring allows it to be suspended, on the other side, a claw clamp to hang the item to be weighed: letter etc... This clamp is connected to a metal spring which expands according to the load and indicates thus the weight of the item. Protected by a chrome tube.
First half of the 20th century
Shipping in France and internationally, contact me for details