What is the best way to explain the pre-decimal British Pound in a text that has multiple references to it.
I already have something written to explain how to convert from pre-decimal to post-decimal to add as an appendix, along with something to help convert the value (i.e £x y shillings and z pence in 1935 = £x.xx in 2020.
However: The text has multiple references to money spanning several decades, thus it becomes not just about converting from £sd to £p but accounting for inflation as well as £1 in 1935 doesn't amount to £1 in 1945 for example.
Leaving a footnote for each and every monetary reference seems overly messy as some pages have several such references.
Is there a better way to deal with this?