The top one is definitely Mdina and possibly late 1970s or newer. I have seen this shape in the Earthtones ranges, which was introduced by Eric Dobson in the 1970s, post Michael Harris. Some of the shapes were made for a long time and the blue with silver chloride for ever!
The bottom one, I don't know. I would expect yellowy bits, not browny bits. Later Mdina is hard to date because the current owners didn't want to be involved in producing a book, and this shape doesn't appear in my book, which covers 1968-1972 in detail and merely touches on everything else.