Yes, I had those waxed paper insulated wires. You really don't want to touch them. This was in Finland, and the house was built by a refugee family at a time wh

Yes, I had those waxed paper insulated wires. You really don't want to touch them. This was in Finland, and the house was built by a refugee family at a time when building materials were difficult to get. It was in fact surprisingly good, but still the original electric works plus 50 years of DYI maintenance produced some interesting results, like disintegrating insulations and ground wires not connected to anything. The woodworks of the house were very good but fixing the electricity, heating and plumbing was hopeless.