Most knock-off wheels, wire wheels/spoke wheels like you had on your E-Type, are handed.
The language changes. In this case, knock-off means one large nut with two or three big ears. You remove them with a soft-face hammer.

My Dad, an army driver, could remove a frozen nut with a sharp cold-chisel, with one blow, providing the nut was on solid components. You put the chisel on the centre of a flat, directed to 'just miss' the thread, and wallop! An ex-nut, shaped like a number 6.
"Don't torment it, lad, hit the bloody thing!"
He also taught me to free a taper with the two-hammers trick.