One can see the Rebel symbol in the photo at the top of this article. The symbol was eventually called the Alliance Starbird, and expanded universe lore -- specifically Sean Williams' 2008 novel ...

The coin depicts a silhouette of the fictional starship and the Rebel Alliance Starbird symbol, which is revealed when it tilts in the light. It is one of a series of coins dedicated to the ...

A lenticular feature on the first coin in the collection also means both Luke Skywalker's home planet Tatooine and the Rebel Alliance Starbird logo are visible when it is tilted in the light.