If the camera was exported to the UK or the USA then the distance scale will be in feet. It will also have the smaller tripod boss via a screw-in adaptor.
With that lens serial number (I have never seen one on a Novar lens before) the lens was made in mid 1930. That indicates a date for the camera of 1931 - as they didn't start making the Ikomat/Ikonta until then. Lenses were made in batches and it was usual for the lens, shutter and body to be made in different years.