Marie Curie Commemorative Medal/Token (Potentially Silver-Plated Core)
Commemorative Medal / Token / Numismatic Souvenir · None. The item exhibits grey-black tarnish (sulfidation) typical of silver or silver-plated copper-nickel rather than gold.
Purity: Non-gold; analysis suggests base metal or silver with heavy surface oxidation/toning.

Type
Commemorative Medal / Token / Numismatic Souvenir
Purity
Non-gold; analysis suggests base metal or silver with heavy surface oxidation/toning.
Gold Type
None. The item exhibits grey-black tarnish (sulfidation) typical of silver or silver-plated copper-nickel rather than gold.
Weight
Estimated 20-30 grams based on diameter and thickness typical for a 38mm-40mm crown-sized commemorative medal.
Description
A commemorative numismatic medal featuring a right-facing portrait of Nobel laureate Marie Curie. The design utilizes a high-relief strike with the subject's name and life dates (1867-1934) encircling the profile. The surface shows significant atmospheric exposure, resulting in a dark, uneven tarnish that covers the fields and recesses of the design.
Key Features
Portrait of Marie Curie; dates 1867-1934; sans-serif typography; significant tarnish indicates silver or silver-plate composition.
Color & Finish
Dull grey and black with heavy patina/toning. Original finish likely satin or proof-like; now heavily oxidized.
Hallmarks & Stamps
None visible on the obverse. Obverse features 'MARIE CURIE' and dates '1867 - 1934'.
Dimensions Estimate
Estimated diameter of 35-40mm; approximately 2.5-3.0mm thickness.
Gemstones & Inlays
None. Relief-struck metal design only.
Clasp & Closure
Solid edge; no clasp. Not applicable (medallic item).
Chain & Links
N/A; solid circular planchet construction.
Craftsmanship Details
Industrial die-struck production. Good detail in the hair follicles and facial contours, suggesting professional medallion manufacturing.
Authentication Indicators
The dark black toning is a 'red flag' for gold. Gold does not tarnish in this manner; this is characteristic of silver sulfidation.
Origin & Maker
Likely of Polish or French origin given the subject; private mint production.
Era & Period
Modern / Contemporary commemorative (likely post-1960s).
Age Estimate
Produced in the late 20th century (circa 1967-1990) to commemorate the scientist's birth/death anniversaries.
Cultural Significance
Represents the celebration of scientific achievement and the breaking of gender barriers in academia and nuclear research.
Condition Notes
Fair to Good. Heavy surface oxidation and toning. Lacks gold luster. No major gouges visible but significant environmental wear.
Value Estimate
Nominal / Melt value. If silver, approximately $20-$30 USD based on weight. If base metal, less than $5 USD.
Care & Maintenance
Do not use abrasive gold cleaners. For silver, use a non-abrasive dip or microfiber cloth. Keep in an airtight capsule to prevent further oxidation.
Similar Items
Polish 100 Zloty Marie Curie silver coins; French 500 Franc notes; various UNESCO commemorative medals.
Interesting Facts
Marie Curie was the first person to win two Nobel Prizes in different scientific fields (Physics and Chemistry). Her family won a total of five Nobels.