while i was at my brother's house, dropping off the objet d'art, i took some pictures of the flip top table. first i took a pic of the table itself, one of the way the top was constructed, one of the two side hinges (card table hinges), one of the center hinge (soss hinge), and there was only one hinge like that, so it was the two on the edges, and the one in the center. then one pic of the top in mid-pivot, one of it fully open, and you can see the fancy work around the edges. then the one that solved one question, it was of a stop block, that prevents the top from going any further than 180 degrees, and it is notched to tuck under the pivot point's cross brace, to keep it from lifting in the center. i hope these help. two things that i noticed, the first was that they chamfered the corners of the stop block, not sure if that was needed, or a bit of fancy on something that wouldn't be seen, and the line up scribe marks for the card table hinges. one more thing, the framework around the top is well over an inch thick, and the actual top parts are loose panels inset into the frame.