Good points Greg. I just assumed 473 as the second engine, given the coaling tower shots. And since this was a longer holiday than normal for us, my parents probably pulled me out of school a week ahead, so late June is a possibility. As to the July date on the slides tho, my dad used to mail them in to Kodak as we went along, so sometimes they’d be at the house when we arrived home. That’s why I’m kinda keen to put an actual day to those shots, for my own records at least, if the information still exists.
Cheers,