[Spitfire Mk3 door locked - Burglar wanted!]

Burglar wanted!
Having owned my Mk3 spit since 1980 and having never locked the doors I am now confused to find the drivers door locked. The outside handle push button is solid and the interior door handle moves but doesn't unlock the door. I have never had keys for the doors.
Does anyone know how to break in or what may have failed to cause the door to lock?  I could just step over it but that doesn't work with the roof up.
Suggestions welcome
Thanks you
Chris

[Lights don't work after 21 years of sleep]

Thank you.  Looks like a long weekend ahead tracking this down.

[Lights don't work after 21 years of sleep]

Hi,

 

I am in the final throws of putting a Spitfire Mk4 back on the road after 21 years of it being stored. The body, running gear etc is all done but now I have come to the electrics:

 

I have a running engine with oil and ignition light and the wipers work but everything else seems dead. there is no power at the fuse box when I put an avometer  on each of the + and - terminals on the three fuses but the fuses themselves seem OK.

 

Is there something I am overlooking or do I need to go round every terminal and check it is sound and that all the earths work?

 

Thank you

 

Chris