Nice Finds Ian! I don't think its too bad compared to some of the stuff I have seen both posted on here and out in the field! Those "twin" connectors, I am pretty sure the one on the top is listed for use on NM, and I have used them for that purpose with no problems or "defects".. The second picture of a similar connector appears to be one thats just older and of slightly different design..
Question for you though, in that last picture of the "phone jack": in the upper left corner of that window or whatever the pink curtan is covering, I see 2 NM cables, one that goes through the sill plate and one that does the "funky free-air 45" and disapears through that opening... Are those for an outdoor receptacle? Oh ya that black cable I see there too I take it thats a co-ax? Just wondering..

A.D