the question is the 6d at the top, or six pence, Kenya used c for cents
6 pence=50c need an original bc to compare otherwise it looks bad.
Kenya used the old South African shillings “s” and pence “d” until 1966 when they changed to Kenyan currency...
The British way of writing the money was L1 2s 6d for One pound 2 shillings and 6 pence...
(The pound sign had a stroke or two through it)
6d became 5c in NZ when the currency was changed in 1966
If that BC was only 6d it was cheap but by 1964 standards it was probably about 50c..
Or it the cost some amount of pounds and shillings and then 6d ??