Hi Dr. Deb

When you say double spacing, I assume you're talking about an extra space between each line of typing. If memory serves me correctly, the Remette was an entry level machine, so was pretty basic in its functions. I know I have a Remette in the storage shed, but I'm not about to run out there through freshly fallen snow and below freezing conditions. I can however tell you that on my 1935 Remington Junior, there is a small knurled knob on the far left end of the carriage. Pull this knob out and turn it one way for a single spaced lines and the other for double spaced lines. Hope this helps and all the best,

Sky

And had I read your instructions carefully, I would have known to gently pull on that little knob first !