HMS Scylla [1942]
One of two sisters (the other was, appropriately,
HMS Charybdis),
Scylla was completed with four twin QF 4.5 in Mk.III in UD MK III mountings because of a shortage of the intended QF 5.25 inch gun mountings.
The forward superstructure was considerably modified to accommodate these and also to increase crew spaces. Known as the 'toothless terrors', they proved to be very good anti-aircraft ships, often leading to comparisons with their sisters armed with the heavier QF 5.25-inch (133 mm) guns.
https://en.wikipedia.org/wiki/Dido-class_cruiser
https://en.wikipedia.org/wiki/HMS_Scylla_(98)
https://en.wikipedia.org/wiki/HMS_Charybdis_(88)