Levis Brown wallet lost from Grand Canal to Dalkey Dart

Yesterday (May 9th, 2012), at around 18:30h, I lost my wallet somewhere between Grand Canal Dock and Dalkey. The train was heading to Bray. I noticed it wasn't with me when I left the train in Dalkey, so it was probably dropped either on the GC station or the train. The wallet is made of leather, brown color, from Levis. It has my cards and documents. I'd appreciate if you could get in touch in case someone finds it and returns it. Thank you in advance for your help.