This 1918 home had the basement re-wired with 20 amp romex and they spliced inside junction boxes to older knob & tube wiring. The 1st & 2nd floor wiring is all older K & T. Isnt the older K & T 15 amps? Some of the splices are outside of the junction box.
I called out an electrician to review all older K & T and the connection points.
Also at the main panel the connection point of the ground wires appeard to be improper. Sloppy work at the nuetral & ground connections. Isnt that one nuetral improperly crossing the hot bus bar?
I do belive it may be. I called it out. I was more concerned about the 5 2x4 as the main house beam. I need to see what the bearing weight is compared to 3 or 4 2x8.
Knob & Tube is allowed to be spliced into Romex but it must be done inside a junction box. The wire caps are an improper spliced connection if they are not placed inside a junction box.