My own experience of the ‘No W.W.’ 1858’s are that the numerals are always the large type. I have seen all three numerals with different repairs, some more obvious than others, but I think that each numeral retains the same font type.
I believe that some collectors think there is a tall thin numeral one, and a different smaller type, but I think this is an optical illusion due to the position of the base of the 1 in respect to the border.
I show below 3 different dates (all No W.W.) with the numeral 1 at varying heights in respect to the border teeth. At first sight, one could be forgiven for thinking that the 1 in the top picture is a taller type.
When looking under a digital microscope, however, the numeral 1 appears to be the same height (and type) on all 3 coins. The pictures on the right hand side, taken at 140x mag, illustrate. I actually took the middle picture first, and measured at 1.61 mm height, and then slid the other two coins under the microscope without changing the magnification. I think that is why the other two pictures are marginally out of focus, due perhaps to slight differences in thickness of coins and wear of numerals. Nevertheless, I think it illustrates the point I am making.
It can also be noted that the top bar of underneath numeral 1, protruding towards the top left, can be seen at different heights.