My new (to me but old obviously) Leitz LM Lux with Phase Contrast.
Obtained from Ebay for just over £100.
It needed a clean and a bit of setting up with help from some of the wonderful people on the forum and now it's first class.
Phase Contrast is a revelation.
Just started playing with it tonight.
I did a simple mouth scrape and made a slide of some epithelial cells.
Without stain they are almost invisible but just click in the right annulus and 'pop' there are the cells in all their glory.
Going to play with the 100x oil objective next