What coins were in use at any one time is a matter for further investigation by whoever comes across reference to them. The farthing was no longer in use by my time (born 1950s) although my school arithmetic books had problems in them with farthings in.

The crown (5s) was also not in use at this time and I believe the half a crown coin was also phased out in advance of decimalisation to make the transition easier as we kept the same coinage for some time just called it by different names. And of course the new 50p piece was slimmed down at some stage to a shadow of its
original self at some point probably at around the time of the introduction of the £2 coin. The ten bob note of course disappeared with the introduction of the 50p piece.

A florin was called a two bob bit by the way. And of course a shilling was a bob. hence the expression “I bet he’s’ got a bob or two”

And this is just in recent history.