What is my PSP model?

There are four PSP Models:
1- 1000 Series (Also known as Phat/Fat)
2- 2000 Series (Also known as Slim or Lite & Slim)
3- 3000 Series (Also known as Brite)
4- 1000n Series (Also known as PSP Go)

Which Model is yours? (See the image below to know)