For gallery more fraction marks

Here are my fraction marked items.  I hope they help solve this puzzle.
This is 3/7 with a 4 to the side

16/10 with an upper case D  (this is done by a different person - note the different styles of script)

18/10 with an odd squiggle to the left

18/4 (I think) with a 38

9/12 with what looks like a 38

This one is very interesting - a huge amount of detail including a name. L. Brown 27 1/2 (ie and a half) Overglaze L.I.G.  28/5. Also a flat dry base which is unusual. Possibly very early but who knows.
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last, my little yellow jug with someone's initials only. DM

Light Brown maybe?

That is the most interesting base to date with all of that information.
I agree with Kat re the Light Brown and below Overglaze Li G is probably Light Green.
There are so many clues there it will be the star of the show!
Not sure how to interpret it for the Gallery, but I will ponder for a while.

The lovely greeny blue above if you turn it around the other way says 38 9/12 to me ??

You are right re 38 9/12 thanks Ev. I will edit accordingly.