Homepage
Crypto
Spy radio
Burst encoders
Intercept
Covert
Index
Glossary
Cameras
Recorders
Radio
Bugs
Microphones
Concealments
Lock picking
Stories
Radio
PC
Telex
People
Agencies
Manufacturers
• • • Donate • • •
Kits
Shop
News
Events
Wanted
Contact
About
Links
   Click for homepage
Cylinder
Dead drop container

One of the larger devices that are used for a dead drop, or dead letter box, is this aluminium container. A cylindrical concealment device with rounded edges and a removable cap, much like a dead drop spike. Like the spike it is made of aluminium and is fully watertight, but offers space for more and larger items. Ideal for dead drops that are stored in moisty places or under water.

The container shown here is about 22 cm long and has a diameter of 5 cm. At the top, it has a large threaded cap with a rubber O-ring to make it watertight. Inside the cylinder is a storage space that is 3.5 cm wide and 16 cm deep.

This makes the container not only suitable for documents, money and One-Time Pads (OTP), but also for objects like photo films, equipment, invisible writing tools, ammunition, chemicals and even a minox camera with accessories. The cap has a hole for a string or a rope, so that that it can easily be recovered from its hiding place.
  
Dead drop cylinder

Containers like this come in various sizes, but the one shown here is probably one of the most practical ones. It is small enough to be hidden effectively and large enough to hold some objects. Like the spike it can be pushed into the ground and covered by a couple of stones or some grass.

Once the container was left at a secret location, the sender had to notify the recipient that a message was waiting for him. This was usually done by leaving a secret mark (signal) at at a predetermined place, e.g. a horizontal line with red chalk at the side of a bench in the park.

The recipient then went to the secret location to collect the container and its contents. After that, he confirmed reception by leaving another secret mark at a predetermined place. This way, sender and recipient (or agent and handler) never had to meet in person and were less likely to be caught.
  
dead drop cylinder with secret items

The image above shows how a Minox BL subminiature spy camera is stored inside the cylinder, along with films, a couple of OTP booklets for sending and receiving, and several other items. This kind of dead drop is also suitable as a cache as it will protect its contents not only for hours or days, but even for years if necessary. The cylinder shown here was kindly donated by Dereu & Sons Manufacturing Co. (US), who produces high quality reproductions of dead drop spikes and hollows coins. They also make film props and custom concealments for any kind of object [1].

Dead drop cylinder Items stored inside the cylindrical dead drop container Removing items from the container Cap removed dead drop cylinder with secret items dead drop cylinder with secret items Minox camera taken from the dead drop container Dead drop cylinder with secret items
A
×
A
1 / 8
Dead drop cylinder
A
2 / 8
Items stored inside the cylindrical dead drop container
A
3 / 8
Removing items from the container
A
4 / 8
Cap removed
A
5 / 8
dead drop cylinder with secret items
A
6 / 8
dead drop cylinder with secret items
A
7 / 8
Minox camera taken from the dead drop container
A
8 / 8
Dead drop cylinder with secret items

References
  1. The Dereu & Sons Manufacturing Company, Dead Drop Spike
    Retrieved August 2015.
Further information
dead drop cylinder with secret items

Any links shown in red are currently unavailable. If you like the information on this website, why not make a donation?
Crypto Museum. Created: Sunday 06 September 2015. Last changed: Tuesday, 13 June 2017 - 10:51 CET.
Click for homepage