This icon looks just like a bar chart, but uses only three rectangles of various heights. The rectangles are ordered from left to right with the middle sized one on the left, the shorter one in the middle, and the taller one on the right.
This is a Bar Chart icon. It is available in PNG and vector. Downloading is free for PNGs up to 100x100px.
Idea of Bar Chart Icon by robert.muehsig
We've received the idea on November 24, 2011 and created the icons on December 12, 2011