Unknown German aircraft part made of leather: "Notausstieg"

[Truffle Pig]

It is well known that shortly after World War II, suitcases were made from leftover aluminum sheet metal in various German and Allied aircraft factories.

This is also the case with the suitcase pictured here, which was recently offered for sale on a German advertisement portal. It is mainly made of very soft aluminum (3355?), but the corner profiles are probably made of harder duralumin. Some of the rivet heads still bear the characteristic set head markings used in aircraft construction.
Also typical of these makeshift products from the immediate post-war period are the improvised handle made from a wood-reinforced aluminum profile and the homemade closure. And the lid holder made from a leather strap, which is stamped with the words "Notausstieg" (emergency exit) and probably also comes from aircraft construction.
The case comes from a previously unknown workshop, from which I am aware of a total of five comparable cases made of this soft aluminum. Two were found in France and three in the area around Freiburg im Breisgau—the former French occupation zone.
My question now is whether anyone can say which aircraft model this strap comes from or which manufacturer used such straps.

The last picture shows another model from this workshop, presumably made somewhat later and equipped with a metal lid holder:

 

[A4K]

Nice item!

 

[Antarctica]

Hmm, translates as "Emergency Exit" - or "emergency kit". Maybe held life-vest & oxygen bottle or 1-man life-raft ?

 

[GrauGeist]

The only leather materials in German aircraft that I am aware of, were fuel cells, such as the Me262's - however, if the straps you have shown, stated "emergency exit", than they may have been used in bombers or transports to engage the escape hatches.

 

[A4K]

Leather straps were common enough in Ju 88 cockpits, for holding back curtains, holding down various pieces of equipment, and as handles on ammunition cases. Couldn't find a picture of one used as a Notausstieg handle in an 88, but I'm sure Dave's right that they could have been used as such on one type or another.

 

[A4K]

Sorry, I said Geo...I meant Dave!

 

[DerAdlerIstGelandet]

Hmm, translates as "Emergency Exit" - or "emergency kit". Maybe held life-vest & oxygen bottle or 1-man life-raft ?

Notaustieg translates to "Emergency Exit" not "Emergency Kit."

I suspect this is a handle from an emergency exit door, hatch, or panel.

 

[GrauGeist]

Sorry, I said Geo...I meant Dave!

No problem, Evan - I've been called worse!

 

[A4K]

My dad used to say 'Call me anything you like, as long as it's not late for lunch!'

 

[grueni62]

Hmm, translates as "Emergency Exit" - or "emergency kit". Maybe held life-vest & oxygen bottle or 1-man life-raft ?

It's "Emergency Exit" not "Emergency Kit", no clue other than that. But it's a word you might also find in public transport like maybe a bus, a train or a tram. In a building it would be more likely "Notausgang".
I'm from Stuttgart born 1961.

 

[DerAdlerIstGelandet]

It's "Emergency Exit" not "Emergency Kit", no clue other than that. But it's a word you might also find in public transport like maybe a bus, a train or a tram. In a building it would be more likely "Notausgang".
I'm from Stuttgart born 1961.

I am from the Stuttgart area as well. So is my wife. We currently live in the US, but we fly home to Stuttgart every year to visit our families.

 

[Truffle Pig]

After nearly a year, I've managed to obtain further information about the manufacturer of these suitcases and its activities during the war:
These suitcases were manufactured after the end of the war by the company H. Danger K.G. in Säckingen (now Bad Säckingen). The town of Säckingen is located on the Rhine, right on the border with Switzerland. That was also the main reason why the Danger machine factory—which was actually based in Hamburg—set up a production facility there out of fear of bombing raids.
In Säckingen, they produced bomb release mechanisms (ETC 500), sliding canopies for the Focke-Wulf Fw 190, and "C-Stände" = C-stands for the Heinkel He 111. C-stands are the tub-like protrusions beneath the fuselage in which a machine gunner could lie and fire toward the rear.

My hypothesis—which, unfortunately, remains unproven—is that the leather strap bearing the inscription "emergency exit" was installed in these C-stands.