At first I was going to say AU something, but it seems from the pics that perhaps there is no wear. Thinking too many dings to support more than a 62.
Really impossible to tell from those pics. Looks AU58/MS62 to me. A very hard issue to grade from pictures, and a very hard grade-range to boot. The 1926 is a decent year for this design also. I have a 1927 and 1928, much more common, but even so still not easy to find in MS63 even.
1926 10 L also has a proof issue. But only see 1 in world book with black and white photos I can't tell you this could be one.I know later issue are like America proof coinage .
I am trying to interpret your pictures, and it doesn't look like rub to me. The big mark on his cheek limits it to 63, and I'm going to assume that the luster is there. This could either be a high 62 or a low 63, I think.
Please, look this for comparison http://eshop.moneteshop.com/images/product/10l27r1qf.jpg This coin is from one of the best Italian dealers, his judgement is qFDC ("quasi Fior di Conio", litterally About Uncirculated). But, in my opinion, the Italian grade qFDC corresponds better to American MS60. Your coin, for me, is at a lower level, compared with the coin of Italian dealer, so my grade for you is AU-58. petronius
