A sign on the gate at Gabriel’s Wharf warned that the foreshore was unsafe and to keep away, but I'd read elsewhere these weren't official signs and no-one knew what was more unsafe than usual about it.
I walked through the gate anyway and headed onwards, waiting for the tide low enough to get to the patch of foreshore outside the National Theatre.
While I was waiting I found what I thought was a coin, but things are deceptive on the foreshore and when I got it home, it had transformed into something else, although I don't know what.
A pair of tourists sat on the steps by the locked gate, chatting loudly.
In front of me on the waves were seagulls bobbing and I could hear the clink clink sound of boats, and the clatter of the waves against the pebbles. I felt happy to be there, by this river.
I found some large pieces of what were once pots of some kind. One with the letters, “ING” which was probably another Maling marmalade jar. One with “London” and some other indecipherable words, and one which probably once said “pottery” and “Derby”. That may have been for ink.
I found a lot with letters on! Numbers also: a thing that has “55 14” on it. A letter ‘T’, on a piece that was reddish with a cross. An ‘E. Letters that probably once spelt ‘England’.
These are all in the first picture:

In the second picture:
A cat bread sticker, looking particularly strange.
A wooden thing. Is it something carved and used by humans or just a bit of tree root that ended up in the Thames?
A domino. But where are the rest of the dominoes?
A blue pottery sherd with what looks like ‘TS’ on it.
A pottery sherd that looks like it says "fex" on it, but that seems unlikely.
The metal brown circle.
A tip of a pipe, and a decent bit of pipe and bowl.

In the third picture:
An Aynsley China sherd.
A little button.
Some nice colourful pieces of glass.
A shard of glass that says “Pepsi” on it.

The sun was getting low in the sky and the light was fading as I walked back across to the beach by Gabriel’s Wharf, before the tide came back in.
(You need a permit to mudlark or search on the Thames foreshore.)