This is a British machine with the there common wondrous wealth of fractions on the keyboard. Mention of the Corona Typewriter Company address in London at Aldwych House, WC2. Patents still pending according to the label.
All this makes it likely it is an English typewriter that was sold in Britain, typewriters for the Dutch market would have had a 'Dutch' international keyboard. That it's British is a bit unusual, as the original owner was said by the seller to be Dutch. Then again not impossible for him to have been in England in the twenties. Though it was suggested by the seller he'd kept this machine with him during his imprisonment, that strikes me as unlikely.
Back to the typewriter: Some detail views of the carriage. It is very similar to the Corona 3 carriage - not very 'tight' in its rails, but light-running and comfortable in use.
The serial number in the machine frame H311516. From the information in The Database, the machine was made sometime in the summer of 1925.
The typeface with the opportunity to keep an account precise to eighths of a penny.
The rubber of the machine still needs seeing to - it is rock solid and makes for a very loud machine. Other than that it is fully functional and ready for use!