It's a long story.  And why is the price so low?  I think you'll understand after reading this:

Our contractor used some of these hinges to fit full inset doors because he didn't order the soft-close hinges we told him to use.  The remaining hinges were not used at all, but I can't tell them apart.  All look and function like new.  I have no use for these and hope someone might be able to use them.  That's why I'm asking a ridiculous, low price.  Tired of tripping over them in the attic and tired of the memories they provoke of our contractor who wouldn't listen!

As best I can tell, I have:  at least 45 press in Series 200 self closing 110 degree opening C2_6P99, at least 10 screw in Series 200 self closing 110 degree opening C2_6P99, at least 10 Series 200 Domi Snap-on mounting plates BAR3R H03, and more than 40 Series 200 Face Frame Mounting Plates BAU3L.  But my interpretation of part numbers may be off.  Quantities are good, but don't rely on my model numbers if that's critical to your project.

Also, I say "as best I can tell" because there aren't many markings on the hinges and I've had to use the Salice catalog to guess.  That's another reason the price is so low.

I'll be happy to answer some questions, but know that you'll get at least the quantities I've mentioned of something made by Salice.

My bad contractor can be your good deal!  Thank you for looking and for helping me out with my frustrations!