Vinyl & Data

I was going through a box of old 78s that we got quite a few years back (15 years or longer) to put on Discogs (and found quite a few which aren't on Discogs and need to be added). The records were from someone from Leeuwarden (up north in the Netherlands) according to the stickers the record shop put on it. Most of these were jazz, foxtrots, waltzes, some classical and Dutch, but there were three records that I found very interesting: they were self-produced and two of them had a date of October 8 1948. So first of all, I didn't even know people were recording things themselves back then, so that was a bit of a surprise. As said there were three records: one 7" and two 10" records. I could find out what was on the 7", even though I didn't play it: organ music from the Dutch Reformed church in Dronrijp (which is very close to Leeuwarden) and which apparently has the oldest church organ in the province it's in. The record is a so called Simplex recor...