About the Design:

Obverse
National arms and date

Lettering:
LIETUVA
Year

Reverse
Square ornament with triangle tulips in each corner, in the center there is a symbol of the columns of Gediminas

Lettering:
1
CENTAS

Comments
The Columns of Gediminas or Pillars of Gediminas is one of the earliest symbols of Lithuania and was part of the historical coats of arms of  Grand Duchy of Lithuania

Composition    Aluminium
Weight             0.83 g
Diameter    18.75 mm
Thickness    1.3 mm