This coin is in very good shape – I’d grade it EF40 or better.
On the obverse, we find the coat of arms of Aruba. It is a quartered shield on top of a laurel wreath, with a lion sitting on its belly on top. The lion crest symbolizes power & generosity. In the four quarters of the shield (clockwise from the top left) are an aloe plant, Hooiberg hill, a cogwheel, and 2 hands shaking. Aloe is a major export of Aruba, Hooiberg Hill is a landmark that represents the rise of the island, the handshake signifies goodwill towards the rest of the world, and the cogwheel represents the industrious nature of the islands inhabitants. The COA rests on a horizontal bar, with the date to the left. The legend is suspended between two bars at the top of the coin, and reads “Aruba”.
On the reverse is a strange geometric design (light reflecting through a diamond or prism, perhaps?) with the legend “25 c”.
Identification code: Aruba KM-3
Mint Mark: n/a
Mintage: unknown (but others in the series were minted in 109,000 to 741,000 quantities)
Country of origin: Aruba
Composition: Nickel plated steel
Size: 20 mm
Estimated Value: $0.25-$0.50