What is going on here?

tonysbricks · 2013-09-12T04:52:27.000Z

I am finally going through a large bulk lot I bought in Jan. It contains, so far, about 30 of http://www.bricklink.com/catalogItemIn.asp?P=44126&in=S in dark blue. According to BL there are only a few sets with that color and none of them have very many. Was there some other source of these, like PAB or the brick wall? Not sure where else so many could have come from...I did not see markers for multiples of any of the sets on BL that have this color either.