I think it's a font called Minion.

http://www.identifont.com/find?font=minion

I took the sample picture you provided and went through the "Fonts by Appearance" Q & A, though I had to skip quite a few, and eventually I ended up with a list of possibilities. This one seems to fit perfectly with the same test you provided.

If you can find additional capital letters, numbers, and symbols, you can narrow it down more accurately, but when I compare the letters in your sample with the shape of the letters in Minion, it seems to me a perfect fit.

I think it's a font called Minion.

http://www.identifont.com/find?font=minion

I took the sample picture you provided and went through the "Fonts by Appearance" Q & A, though I had to skip quite a few, and eventually I ended up with a list of possibilities. This one seems to fit perfectly with the same text you provided.

If you can find additional capital letters, numbers, and symbols, you can narrow it down more accurately, but when I compare the letters in your sample with the shape of the letters in Minion, it seems to me a perfect fit.