Soviet LK Lunar Lander symbol / markings

[whitelancer64]

"Does anyone know what the symbol above the blue LK hatch is please?
The one that looks like a black circle in a triangle, just above 3 abbreviations."

https://twitter.com/Nick_Stevens_Gr/status/1475393793696358400

[whitelancer64]

"Try this zoom , more clear, gentlemen...maybe some kind of pressure warning I guess"

https://twitter.com/frankfelix80/status/1475626662507294722

Based on the location I'd guess it is a valve connection or pressure warning symbol.

[DanClemmensen]

"Try this zoom , more clear, gentlemen...maybe some kind of pressure warning I guess"

https://twitter.com/frankfelix80/status/1475626662507294722

Based on the location I'd guess it is a valve connection or pressure warning symbol.

:)That's the Deathly Hallows, but the wand is missing 

[whitelancer64]

"Try this zoom , more clear, gentlemen...maybe some kind of pressure warning I guess"

*snip tweet*

Based on the location I'd guess it is a valve connection or pressure warning symbol.

 :)That's the Deathly Hallows, but the wand is missing 

JK Rowling was born in 1965.

Maybe she was a Soviet consultant for their spacecraft symbols?

[Magic]

Shows up on this image from astronautix.com

http://www.astronautix.com/graphics/l/lkdet12.jpg

[whitelancer64]

Shows up on this image from astronautix.com as the "LK IOS Closeup
Close-up view of the Integrated Orientation System block above the exit hatch"

aka this side up?

http://www.astronautix.com/graphics/l/lkdet12.jpg

In this image, it appears to be pointing at the valve above it. I'm presuming it's a pressure warning, or perhaps just a symbol for a valve connection.

However, I have been unable to find any source for what the symbol means.

[Blackstar]

"Try this zoom , more clear, gentlemen...maybe some kind of pressure warning I guess"

*snip tweet*

Based on the location I'd guess it is a valve connection or pressure warning symbol.

 :)That's the Deathly Hallows, but the wand is missing 

JK Rowling was born in 1965.

Maybe she was a Soviet consultant for their spacecraft symbols?

Space historians beware:


https://www.theonion.com/archaeologist-tired-of-unearthing-unspeakable-ancient-e-1819566285

Archaeologist Tired Of Unearthing Unspeakable Ancient Evils
1/16/02 12:00PM

HASAKE, SYRIA—When archaeologist Edward Whitson joined a Penn State University dig in Hasake last year, he did so to participate in the excavation of a Late Bronze Age settlement rich in pottery shards and clay figurines. Whitson had hoped to determine whether the items contained within the site were primarily Persian or Assyrian in origin.

Instead, he found himself fleeing giant flying demon-cats as he ran through the temple's cavernous halls, jumping from ledge to ledge while locked in a desperate struggle for his life and soul for what seemed like the thousandth time in his 27-year career.

"All I wanted to do was study the settlement's remarkably well-preserved kiln," said the 58-year-old Whitson, carefully recoiling the rope he had just used to clamber out of a pit filled with giant rats. "I didn't want to be chased by yet another accursed manifestation of an ancient god-king's wrath."

[edzieba]

The symbol is probably defined in an old GOST standard. I had a quick look through hazard warning standards, but those appear to have since been harmonised to be close to ISO standards, so would need an archive for early USSR standards to check.

[libra]

"Try this zoom , more clear, gentlemen...maybe some kind of pressure warning I guess"

*snip tweet*

Based on the location I'd guess it is a valve connection or pressure warning symbol.

 :)That's the Deathly Hallows, but the wand is missing 

JK Rowling was born in 1965.

Maybe she was a Soviet consultant for their spacecraft symbols?

I checked her biography once: her father worked at Rolls Royce, on the Harrier "Pegasus" engine.

"Harrier Potter", anybody ?  no needs for magical witch brooms...