https://en.numista.com/catalogue/pieces5838.html
There are three 'eras' of Victoria coins, and so three portraits -
1838-1887 Young Head = 1st Portrait
1887-1893 Jubilee Head = 2nd Portrait
1893-1901 Old Head or Veiled or Widow = 3rd Portrait
So in 1887 and 1893 there were two types. That is for three pence coins anyway. I never know whether that is for Maundy or ordinary - or how to tell the difference. On the above page the notebook on top right says Year 1887-1900 and in the Manage your collection part there are ten years ...
1887 1888 1889 1890 1891 1892 1893 1897 1898 1900
BUT I think that there should only be the first seven years - and so remove 1897 1898 1900 (and change Year to read 1887-1893 ?
https://en.numista.com/catalogue/pieces5839.html
Those three years are already in the above link (for 1893-1901)
Whilst writing, for the 1st portait I thought 1838 was the first year for three pence, on the page
https://en.numista.com/catalogue/pieces4412.html
although 1838 (and 1839 1840 1841 1842 1843 1844 1847 1848) were issued for colonial use only. But of those only 1843 is on the above page. And at the end there is no 1887 in the list.
Don't want to add any without checking.