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BOCN Guess what it is

Switch,

I guess I am excluded from IDing this :) but I will prepare a note on it.
 
Bonnex - You ought to be excluded from this one, but if we get no answers please technically put us out of our misery.
V40 - You are definitely getting warm!

Cheers for now

Switch
 
Well done Dave - I will post some more photos in another thread for those who are interested.

Over to you Sir

Cheers

Switch
 
Switch,

Yes, please post more info about the exploding book device and any other similar items.
 
Thanks for the nice item pictures Switch, here we go with this one, it measures 145 x 55 x 97 mm its what goes in the tin im after, there was a can opener at each end like the type to open corn beef tins...... Dave
 

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Thanks for the nice item pictures Switch, here we go with this one, it measures 145 x 55 x 97 mm its what goes in the tin im after, there was a can opener at each end like the type to open corn beef tins...... Dave

Blimey Dave I didn't think one of these would turn up. I won't give the game away.
 
Another item on a similar theme - People present on Saturday should remember this one.View attachment 72029


Briefly:

Fuze, Anti-Removal Air-Armed

V40 was essentially correct, it is a delayed arming anti-lift switch. The fuze was designed to protect demolition charges from removal and was used in conjunction with a Type 6 Burster (as used on the AC Delay). It incorporates the corrosion chamber and striker of a Switch No 10 (Timepencil). The phial of the timepencil is crushed by a lever built into the underside of the fuze and this provides an arming delay. When released the striker moves forward until it is stopped by a ball which interferes with the travel of the striker until the charge is lifted.
Development of the fuze was started at Station IX as a part of a programme to produce standard charges. The work was done by Cotterill and van Riemsdijk (who later started The National Railway Museum). The fuze was referred to as a Mark 3 since two earlier designs (one using a tyre burster) were tried before this pattern emerged.
The fuze is sometimes called a No 7 Switch although this number was originally allocated to an electrical firing device of dubious safety.
 
Thanks for the nice item pictures Switch, here we go with this one, it measures 145 x 55 x 97 mm its what goes in the tin im after, there was a can opener at each end like the type to open corn beef tins...... Dave

Tin for burster charges , possibly limpet ?
 
Hi Millsbomber

"Quite a big tin, and only two will fit in" - Obviously hermetically sealed - Is it a tin for the Barometric Altitude Switch???
 
If someone wants an ID on an original burlap bag used to carry dead rats out of WWI trenches, I'm gonna scream.
 
Hi Millsbomber

"Quite a big tin, and only two will fit in" - Obviously hermetically sealed - Is it a tin for the Barometric Altitude Switch???

Not The Anerometer switch, These are OSS, SOE also used them, these belonged to a Jedburge team just before the D Day landings, WELL heres a clue,,,,,,,, Dave
 
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