Sign

[Muddymike]

Can anyone here identify this sign?

Mike

[Simon Mason]

It is a Cyrillic T with a weight keeping it down.

[Bob Minchin]

Wait here for the toilets?

It does not match up on google image search which is unusual for anything in common use. Do you have a context for where it is used?

[Adrian Caspersz]

At a guess, pressurised telecoms cable?

[Syd Rumpo]

Tear gas grenade store.

Cheers

[Adrian Caspersz]

Blue could be water.... Hmmm...

[Dave W]

The black parts are not quite horizontally centred with the blue circle, so probably a home-made sign. A blue circle on a road sign means "Do this". The black symbol looks like a plunger. The T in a circle might mean "Toilet". So "Please flush the toilet"?

[damduck-egg]

Or is the outer blue circle just a standard for warning signs where in the area /county where it is used?

The little black shape could conceivably be a shovel on top of a cable with the T meaning Telephone/Telegraph/ Telecommunications depending on how old it is.

G.Harman

[Simon Mason]

It is a Russian font T.

[Andy Bennet]

Information sign saying the railway track is used to pass telecommunications data that can be picked up by train.

[Bill Wright]

From the rust I'd say it's upside down.

Bill

[tim...]

you can Google for a match on a jpeg

how?

tim

[Bill Wright]

Or horizontal. Is it on the floor of a bathing pool?

Bill

[The Natural Philosopher]

Google images

Give it the URL of your picture, and it tries to match it to similar patterns

[spuorgelgoog]

Attach detonators here to blow up Channel Tunnel.

Owain

[Bob Eager]

Don't bother - Bob Mincin says he tried that.

[Muddymike]

Its on a mystery roadside cabinet.

Mike

[Simon Mason]

I think it is Russian railways as it is a Cyrillic T.

[James Wilkinson Sword]

Looks like a bulb, the T meaning tungsten?

[Brian Gaff]

Maybe its throw rocks down the toilet? Seeing as I cannot see it its a little hard to be of use. Brian