Just pulled this one from a blue Whitman album. The loss of devices on the obverse caught my attention and turns out it's a good one.
I found one of these, also a 1925-S but even lighter at 2.25g, back in December and based on a quick look at mint mark position seems likely they were from the same die getting fed a few thin-rolled planchets.
http://goccf.com/t/388078&SearchTerms=19251925-S
Lincoln Wheat cent mint error - struck on thin-rolled planchet 2.54g

