On Fri 18th Jan I left my black nokia lumia 800 phone in a taxi from Harcourt Street to Cabinteely although it may also have fallen out on Harcourt street prior to this. When you try to turn it on there is a four digit pin code for the sim. It may have no battery though as it was turned off when I tried to ring it. It has silver buttons on the right side of it and two sections for usb and sim card on the top.
Approximate area where the item was last seen