From 1953 until 1986 The Players Position appeared on the player base cards every single year but one (1972). That is 33 out of 34 issues. Recently Topps has been more hit or miss with the postion. In the three years prior to 2012 the position was present. Both 2007 and 2008 did not contain player postion on the card.
In such a minimalist design I think it would be easy and nice to add the Position somewhere. This once again leads me back to the conclusion that 2012 Topps was ripped off of 2002 Topps Football - which also did not have player position.
Here is a look back at our previous 2012 Topps postings