according to machines of loving grace, an online museum of typewriters by a prolific collector, the quiet deluxe was a refinement of the earlier standard and deluxe models. "the deluxe is very similar to the portable standard in style and function. it has the addition of a tabulator, a paper guide, and of course its signature 'crinkle' finish and chromed bands. down the road, the deluxe would be merged with the short-lived quiet model and become one of royal's most popular models, the quiet deluxe.", and the quiet deluxe was later updated to add a cover release, a carriage-return tension adjustment, a remaining-paper guide, and relocated tab adjustments.