About the Design:

Obverse
Costa Rica coat of arms. Stars represent the Costa Rica provinces, three extinct volcanoes for the three mountain ranges, two ships symbolizing the country's geographical situation between atlantic and pacific ocean and sunrise on the left.
In 1964, the number of stars went from 5 to 7 as Puntarenas and Limon reached the province status

NOTE: size and space between letters varies in mintages. outer rim of Coat of Arms slightly different.

Lettering:
REPUBLICA DE COSTA RICA
AMERICA CENTRAL
REPUBLICA DE COSTA RICA
Year

Reverse
Value within a laurel wreath and initials of the "Banco Central de Costa Rica"

Lettering:
AMERICA CENTRAL
10 CENTIMOS
B.C.C.R.

Composition    Copper-nickel
Weight             2.09 g
Diameter    17.8 mm
Thickness    1.14 mm