Crown Lynn demitasse cups and saucers

I was lucky enough to pick this beautiful set up today! I have never seen anything like it, they have the early ackstamp in cursive writing on all cups and saucers. They have such a delicate glaze that is green on the interior of the cups and lemon yellow fading to natural on the exterior. Also the clay looks to be slightly creamier. They are in pristine condition and come with the decorators finger prints! Does anyone have any more info on them? The cups measure a teeny 5.5cm high.

Thank you for sharing as these are just divine and would have been made between 1948 and 1955 with that stamp.
It's incredible how professional Crown Lynn were in these early days