Just got my MkIII Compass back from Trademark London

[RyMoeller]

Please accept my apologies for resurrecting an such an old thread (especially for the most selfish of reasons) but being as this is the most comprehensive knowledge base for British Mk III compasses it would be foolish to start anywhere but here!

I'm in the process of breaking down a 1943 CKC MkIII prismatic compass for the purpose of restoring it to factory specifications. I've not done a compass restoration before but have tried my hand at many Swiss watches over the past year and a half and have confidence I'm up for the task provided a little guidance is in the offering.



I've broken down the above compass to most of it's constituent parts but am a bit flummoxed as to how the slide for the prism lens comes apart. The slide is secured behind a small sheet metal square with two small screws. When the screws are removed the square can move up and down a small amount but cannot be removed from the slide bracket as it's engaged in a track and cannot be moved either up or down enough to exit the track before it collides with the prism hinge or the bottom of the slide assembly.



I certainly don't want to force things and break an unreplaceable part so anyone who might have an interest in this thread and perhaps some previous experience working with MkIII compasses, I could sure use the help!

Thanks in advance for any assistance you may have to offer. I've read through every page of this thread before begining my work due to the knowledge the membership has on offer.

Also, if you are interested in reviewing the images of the restoration I've uploaded them to my public Dropbox folder here. I appreciate any feedback positive, negative, or otherwise (but hopefully constructive) as I progress.