I have had several sets of the glasses you mentioned.
They come in 25X and 40X by 100mm on a turret and also an angled 25X by 100MM.
You can find them for around $900.00 to $1400.00 and they are made in China.
They are a copy of the old WW2 Zeiss and the optics are not too bad at all considering being made where they were.
They also come with their own wood tripod and a carry case.
They are quite large and that is a problem for most LR hunters. If your close to your vehical and are there all day, these glasses will work fine.
If you buy a set of them, check the coatings on the optics "first." Some of the earlier ones came through with mis-matched color coatings in each optic. As you know, the color should always be the same in both.