Thanks. It does appear to be similar in graphic and wheels (at least the back wheels) to the 6382-1 Fire Station
http://brickset.com/sets/6382-1/Fire-Station
I suppose it is possible that I took parts from that kit and made this. I have more graphics than this kit has though (I have 3 - two on the fire truck and another that is on red pieces similar to shown on the picture). Did they sell the stickers?
6385-1 has a white line around the graphic so it seems that is out of the running.
http://brickset.com/sets/6385-1/Fire-House-I