This is from the person who videoed the program.
Apologies - the quality of this video is not great – the viewfinder on my phone had the whole screen in it, but the video cuts off part of the screen. You will also need to tur the volume up fairly high, to hear Ed
This is a program that Ed Galvin did at a Brunswick library on 4/23/2022. If I remember correctly, it was on Maine Central Railroad in the Brunswick area. He did it for the club just before the covid-19 came. I'll look back in the newsletters to get the name of the program.