Vintage Bienne Swim Boys Biel Keyring, Swimming Club keychain

This is a keyring commemorating the 50th anniversary of Bienne Swim Boys Biel, from 1929 to 1979.
This appears to be a keychain or medallion related to the Bienne Swimming Club (Schwimmverein Biel/Bienne) from Switzerland.

Biel/Bienne is a bilingual city in Switzerland where both German and French are official languages, which explains the multilingual text. "Bienne" is the French name for the city, while "Biel" is the German name. The word "SWIM" appears to be in English, and "BOIS" might refer to a specific location or pool facility.

This looks like it could be a membership token, commemorative item, or achievement award from the local swimming club. Swiss swimming clubs often produce such medallions for members, competitions, or special events. The bronze/copper-colored metal and the classic design suggest it might be from several decades ago, possibly from the mid-to-late 20th century.

Condition:
Like new. Never used.

Shipping:
Shipping may take up to 5-10 days. With standard postage and with a tracking number. You can order more items and I will ship them together for one cost. Overpaid shipping costs will be refunded.