Lost Samsung Galaxy S2 in Coppers/Harcourt St area Friday

LOST Samsung Galaxy S2 in a hard, black phone cover. Phone cover says 'Otter' on it, and when cover is taken off, there is not plastic back on phone. Had the phone in Coppers and battery died. When finished, walked from there to Tripod where picked up by friend. When I got home phone was gone! It's definitely not at home or in friends car. If you have it, or know someone who has, please please PLEASE let me know! I know everyone says it, but there really is some really sentimental photos on it and would really appreciate it's return!