Latvia, Bank Of Latvia

Kennedy Half Dollar

United States · 1971

Eisenhower Dollar

United States · 1974

Newfoundland One Cent George V

Newfoundland (British Colony/Dominion) · 1929

Indian Quarter Rupee

British India · 1940 (likely, based on visible features, though exact year cannot be confirmed from image)

U.S. Flags and Flowers Series, No. 1 - The Flag

The United States of America · Unknown, likely late 20th century

50 Fils Coin

United Arab Emirates · Dates typically range from 1973 to present, specific year not visible but likely within this period.

10 Gulden Gold Coin

Netherlands · 1911

1 Euro (Maltese National Side)

Malta · 2008 (first year of issue for Maltese Euro coins) onwards

Kennedy Half Dollar

United States · 1996

1 Krona

Sweden · Likely 2001 (based on mint mark and common varieties)

20 Euro Cent

Italy · 2003

Jefferson Nickel

United States · 1987

Lincoln Cent

United States · 1975

5 Stotinki

Bulgaria · 2000

100 Lei (Fourth Series)

Romania · 1994

1 Euro Coin

Eurozone Member State (Exact country not discernible from image, as the common side is shown) · Not discernible from the image (Euro coins have varying issue dates from 2002 onwards)

Lincoln Cent (Penny)

United States of America · Based on the image, the year is not entirely clear but appears to be a modern issue, likely post-1982 due to its color, suggesting it's from the late 20th or early 21st century. The last digit appears to be a '0' or 'something similar.

Washington Quarter

United States of America · Post-1964 (specific year not visible)

20 Euro Cent

Italy · 2002

Jefferson Nickel

United States · 2000

Burnished Silver Eagle (American Silver Eagle)

United States · 2022

50 Euro Cent (Italian Republic)

Italy · 2002

Tetradrachm of Alexander the Great

Macedonian Kingdom (Ancient Greece) · Circa 336-323 BCE (posthumous issues continued after his death)

Washington Quarter

United States · 1956

United Arab Emirates 1 Dirham

United Arab Emirates · 1990 (Gregorian calendar equivalent to Hijri year 1410)

30th Anniversary of the Fall of the Berlin Wall Commemorative Coin

Germany (issued by several Eurozone countries, but this specific design is typical for German issuance for this event, as the inscription is in German) · 2019

Roosevelt Dime

United States · 1966

Morgan Dollar

United States · 1921

Jefferson Nickel

United States · 1992

Elizabeth II Gold Maple Leaf (1/4 oz)

Canada · 1992

Mercury Dime (Winged Liberty Head Dime)

United States · 1943

50 Fils (Dhow)

Kuwait · 1974 (1394 AH according to the Islamic calendar)

Liberty Head "V" Nickel

United States · 1910

Three Horses Coin

Mongolia · Likely 2005 (often associated with the 'Year of the Horse' series by Mongolia)

Bicentennial Quarter

United States · 1976

1 Pfennig

West Germany (Federal Republic of Germany) · 1972

Euro Cent

Eurozone (specific country not discernible from image, but common design) · Circulated, likely post-2002 (exact year not discernible from image)

100 Lei

Romania · 1995

Mercury Dime (Winged Liberty Head Dime)

United States · 1920

1 Baht Coin

Thailand · Likely 1986-2008 (BE 2529-2551)

10 Yen Coin

Japan · Heisei 31 (2019)

Canadian 5-cent coin (Nickel)

Canada · While the exact year is not visible in the provided image, the design with the beaver has been in use since 1937, with changes primarily to the obverse (Queen's portrait) and minor compositional changes over time. Given the general appearance, it is likely a modern issue from the latter half of the 20th century or early 21st century.