It is the symbol of an electrolytic capacitor whose value is 10 micro farads and its maximum working voltage is upto 16 volts. These capicitors have two legs, one is positive and other is negative. Longer leg is positive and shorter leg is negative. In the symbol shown above inner leg is Positive( +) and outer leg is negative ( - ). Generally all electroytic capacitors are above 1 micro farad.
If your source voltage is say 12 volts you should choose a capacitor of at least double the rating i.e. 24 volts or even 36 volts to be on safer side.
This is an obsolete symbol for a electrolytic capacitor. Also it looks like drawed in reverse, the T-Bar in the top is a symbol for ground. The large C shaped side would be the negative terminal of the capacitor, and the T-bar within the C shape is the positive terminal.