Halfway down there page there are some historic example alphabets. They looked very normal to me at first, but when I looked closer, I got confused. The capit

Halfway down there page there are some historic example alphabets. They looked very normal to me at first, but when I looked closer, I got confused. The capitals in the "Lombardic Alphabet" start off looking like a modern English alphabet, but I found a lot of the letters to be hard to differentiate. Capital C and capital E both have an "extra" vertical stroke on the right that closes them. The difference between a capital A and a capital F seems to be solely that the A has double horizontal strokes. Was this standard? The Lombardic lower case letters are closer to current typography (with an additional long-s) but I was surprised that some letters seem to exist only in lower case. Were there simply no words that used capital J, capital X, or capital Z? In the next image (Plate 67, Tymns) there are also differences between the capital and lower-case letters. But they seem to be different omissions than the first example: no capital U, V, W or X, but there is a capital Z. And the capital I (or at least, whichever letter that is between H and L) looks very odd. What's happening here?