So a few days ago, someone from one of the astronomy clubs I'm in forwarded me an email from Pierre's sister Fabienne. Apparently she still had a few of Pierre's scopes and was looking to get them out of the house, as they had recently had minor flooding and feared they'd be completely ruined if it happened again. I went to go have a look with absolutely zero information and had no idea what to expect.
Pierre left behind 4 telescopes: a 14" f/4, 12" f/6, 10" f/5 and 4" f/5. They were all in various states of disrepair. All had lots of bugs, rust and spider webs in the tubes as well as thick coatings of dirt on the mirrors - when I looked down the OTAs I wasn't sure whether they had mirrors at all!
The 14" f/4 is probably the most unusual. It has a rather oversized secondary with a tertiary pick-off mirror glued to the middle to run light to an off-axis guiding system of sorts with a shutter built into the focuser and other things. Unfortunately the shutter mechanism and off axis guider along with the tertiary mirror were completely wrecked. The tube was also starting to rot, so it's been dismantled. The primary is a 0.75" thick Pyrex meniscus with little holes drilled in the back, and the coating is.... usable. Missing in spots but solid otherwise. The tube came with rings.
The 12" f/6's mirror in the nicest condition of the four overall, having had such a thick layer of dirt that it apparently shielded it from any corrosion or whatsoever. After hosing it down I was greeted with a like-new coating. The secondary isn't elliptical but some sort of oval cutout from probably some military optical device. However, the primary mirror cell is awful, was barely attached to the mirror and when I removed it it tore off some of the bottom of the OTA. So whether or not it's fixable is debatable. It came with part of a Bigfoot mount, albeit only the upper half. I don't think I'm going to have much luck in finding the bottom half, so if someone needs Bigfoot mount parts, I'd be happy to give it to them.
The 10" f/5 has ugly coatings under a bright light but in the dark they look quite good, the mirror is still well-attached to its primitive cell, the focuser is a lovely 2" helical unit that I lubricated, and it came with a COMPLETE Bigfoot mount! Said mount is also covered in huge amounts of dust and I have yet to clean it, but it looks promising.
The little 4" f/5 seems to be similar to the 6" f/5 offered in the catalog, albeit shrunken. It uses a PVC plumbing part focuser and the whole design is absolutely lovely. Unfortunately the mirror coating is completely shot, so I'll be getting it recoated along with some other mirrors.
Pierre apparently made nearly all of his mirrors, including the ones he sold, by hand and from my understanding had quite a good reputation. I'm excited to try out the 10".
I'll have some pics when everything's a little more cleaned up and organized. I also got my 1930s 6" f/8 scope on a stick and I've been working on that, along with literal piles of mirror blanks... I have too many projects.