Calling on Busse Old Timers. What exactly do I have here? Is it an elusive '1/300'? A2 or INFI? When was it released? Current value? I only started on my Busse journey in 2005 and missed these babies. Evidently the smooth-bolt models were A2 (I have an old Busse brochure attesting to this), but I have no information on the slotted-bolt models. Nicest in the hand by far, between it, the BM-E, and the standard and magnum slabbed FBM's. I really appreciate all input and education!