>>531324152
Someone posted it (and pic related) here many years ago, and I Reverse Image Search'd the name of the guy behind the concept; I think it was posted during a drone discussion (I remember the guy replying saying that it wasn't as chrome or "revolver cannons" as he expected from the name Sabre). I don't even know the name of the book.
I know that archived dot moe has an archive that goes way the hell back, but search isn't enabled for /vg/.