These are nice old silver schilling coins from the old German state of Mecklenburg-Schwerin during the rule of Friedrich Franz I (1785 to 1837).
The distinctive pattern is the crowned FF monogram, which appears on many different silver and copper coins of the period. This page is dedicated to coins that look like the pictures here, with a few minor deviations. This page does not cover copper pfennigs or other silver coins with the FF monogram. It covers:
ONE SCHILLING: 1785 to 1812
FOUR SCHILLING: 1785 to 1809 (as shown to right)
The coin in our main picture (1 schilling upper left) comes from Westfalische Auktion where it sold for $49 US dollars during a 2016 auction.
The coin in our secondary picture (4 schilling to right) comes from Fritz Rudolph Keunker where it sold for $280 during a 2006 auction.
CoinQuest thanks Westfalische and Keunker for use of their coin photos.
Here are approximate catalog values for these nice, collectible coins:
worn: $5 US dollars approximate catalog value
average circulated: $20
well preserved: $35
fully uncirculated: $70
one schilling coins dated 1809 are fairly rare, multiply these values by 2
one schilling coins dated 1812 are quite rare, multiply these values by 5
FOUR SCHILLING DATED 1785 WITH FANCY FF MONOGRAM
worn: $50 US dollars approximate catalog value
average circulated: $100
well preserved: $200
fully uncirculated: $500
FOUR SCHILLING DATED 1809 WITH FANCY FF MONOGRAM
worn: $70 US dollars approximate catalog value
average circulated: $150
well preserved: $300
fully uncirculated: $700