An 89? Could be--the pin count is right. I was looking more at that
countoured "cheek" on the side of the receiver---but the 106 lacks
the 3rd pin up high. I wonder if the 89 in the picture is a .410 or
maybe 20 ga.? They are flat sided in several models---that contoured
side only appears in the 12 ga (and maybe 16?).