Swiss 20 rappen 1850-1859 coin value

The image of this coin is simply an example of Switzerland 20 rappen 1850-1859 type coinage.
Cost approximate and valid for common coin only (without rare varieties).
I do not buy or sell coins - this is just a catalog.

Swiss Confederation (since 1848)

Currency - Franc=100 rappen
Type - circulation coins

Composition - Silver 0.150 (silver-copper-zinc-nickel)
Diameter - 21.05 mm.
Weight - 3.25 grams
Alignment - Medal

Years of coinage - 1850, 1851, 1858, 1859
Mint mark - B (Bern), BB (Straßburg)

Obverse:
Value within wreath
Legend: 20

Reverse:
Cross in shield within sprigs
Legend: HELVETIA Year

Edge: Plain

Krause catalog number - KM#7

Coin price in "VF" - 4-8 USD