Yes, the Galata Guide has a 9a2 with the ANL error. I'm not 100% sure that is a pellet on the breast though, rather than just a slightly outsized pellet in the beading. The S on the reverse is badly worn, but the one on the obverse does look top-tilted to me.
My opinion is that it's a 9a2 rather than an imitation sterling, but I have to admit that I'm not an expert on either series. Surprisingly (to me) though I've just counted 45 long cross in my collection. Only one sterling though.