Thank you very much for your replies. I also two other questions and I'm not sure if I should ask it here on start another ?thread? - I'm new to this.  :-)
The first question is - given that standard office is paper is so bright I found that use coloured paper much easier on the eyes, in particular cream coloured paper.
I also heard that using purple ribbon in the typewriter is also better than black.
I would appreciate some comments on this if that's ok. 
(Sorry for using coloured instead of colored lol)
Query - does Canada use colour of color for their spelling @skywatcher
 

Hi,I'm looking to replace the back panel of a 1936 Corona standard which was damaged in transit.
Any ideas where I can source one?
Thanks