1912 International CONGRESS of ELECTROLOGY and MEDICAL RADIOLOGY Pin Badge RARE

Description

6th International Congress of Electrology and Medical Radiology took place in Prague, Czechoslovakia on 26.-31 July 1912.
A nice pin badge of this event. Very rare item. Size cca 21,5 mm.
Shipping 7.00 USD ( recorded delivery ).
I do combine postage costs, so check out my other auctions.
Excuse a poor picture...
The item will be send by Priority Registered Delivery via Czech Post, your delivery could be watched via their Track & Trace web side.