How to remove lens housing from a Microcord mki

[AsdaFan]

I've got this lovely little TLR that needs it's aperture blades cleaning and I've no idea how to take off the area around the lenses. It has 2 pairs of screws next to the aperture/shutter speed dial but the housing still won't budge after I took them out - perhaps I've overlooked something?

 

[lobitar]

If you posted a picture of the beast, it went wrong. Otherwise you might profitably post a pix to allow more correspondents to comment on your problem.

 

[Dan Daniel]

So are the screws you removed shown in this photo? Looks like another one at the bottom.