First, Governors of the Wine Merchants Guild, by Ferdinand Bol. I won't pretend that this was the Old Master I was thinking of, since I'd not aware of having seen it before. But still:
Next, a detail from Raphael's School of Athens, featuring the raised-finger gesture we see from Obama.

After the jump, two more with the raised-finger motif.
The Death of Socrates, by Jacques-Louis David.
And, for regional balance, a raised-finger Buddha, by Chang Sheng-wen.






