deskthority

Thanks for the help! Do you happen too know anything about the Triumph Adler(The gabriele 5000 and gabriele 100) or the Olympia as well?
Here's some pics:

Hi guys, it's my first time posting here, but i've been lurking on deskthority for a long time.
Could you help me identify the switches used on some typewriters(they're not mine yet, I can buy them for 5-15 euros a piece). The first two picture are from an Olivetti Praxis 20, and the last two are ...