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CX-52 collection
CX-52 machines in the Crypto Museum collection

This page gives an overview of the CX-52 models that are (or were) part of the Crypto Museum collection. Note that the lower case suffixes to the model number are secret designators that were only known to Hagelin and the NSA. For an overview of the C-52 machines, click here. Note that the bars shown in red cannot be fitted with lugs. They are known as unluggable bars. More...

CX-52a used by Argentine Foreign Office
CX-52c used in the Netherlands
CX-52c used in Switzerland
CX-52g used in France
CX-52/RT used in Germany
CX-52/RT used by the Dutch Foreign Office
CX-52a   S/N 33432
This is a civil variant of the CX-52 that was used by the Argentine Foreign Office. It is equipped with Standard A slidebars, which was considered the most secure set of slide bars available. Although it has a re-arrangeable print head (and letter dial), it is not fitted with the F/V feature.

  • Model
    CX-52a
  • Series
    D
  • S/N
    33432
  • Manufacturer
    Crypto AG
  • User
    Argentina
  • Wheels
    29 31 37 41 43 47
  • Bars
    Standard A
  • F/V feature
    No
  • Print head
    Re-arrangeable
  • Typeface
    Latin (A-Z)
  • Offset
    Adjustable
  • Letter ring
    Re-arrangeable
  • SPACE
    W
  • Paint
    Grey
  • Lock
    Flat cylinder key
  • Collection
    300244
Pos Shape ID
31-32 13
30 12
26-29 11
25 10
21-24 9
20 8
16-19 7
15 6
11-14 5
10 4
6-9 3
5 2
1-4 1

CX-52c   S/N 11946
This is a military variant of the CX-52 that was used in the Netherlands. It is fitted with the externally controllable F/V feature, but is configured with one of the least secure set of slide bars. Interestingly, it came with the alternative set of six pin-wheels.

  • Model
    CX-52[c2]
  • Series
    -
  • S/N
    11946
  • Manufacturer
    Cryptoteknik 1
  • User
    Netherlands
  • Wheels
    25 26 34 38 42 46
  • Bars
    Standard C2 I
  • F/V feature
    Yes, external
  • Print head
    Re-arrangeable
  • Typeface
    Latin (A-Z)
  • Offset
    Adjustable
  • Letter ring
    Re-arrangeable
  • SPACE
    X
  • Paint
    Green wrinkle
  • Lock
    Cross key
  • Collection
    300792
  1. Manufactured for Crypto AG (Zug, Switzerland) by AB Cryptoteknik (Stockholm, Sweden).

Pos Shape ID
32 17
31 16
28-30 18
1-27 13

CX-52/30   S/N 11951
This is the 30-character version, which was made especially for foreign languages – like Arabic or Russian – and for customers who needed additional symbols. The machine shown here features a customised Latin alphabet with four extra symbols, a fixed print head and a fixed letter dial.

  • Model
    CX-52a/30
  • Series
    -
  • S/N
    11951
  • Manufacturer
    Cryptoteknik 1
  • User
    Switzerland
  • Wheels
    29 31 37 41 43 47
  • Bars
    Standard A
  • F/V feature
    No
  • Print head
    Fixed
  • Typeface
    Latin (30) 2
  • Offset
    Adjustable
  • Letter ring
    Fixed
  • SPACE
    -
  • Paint
    Green wrinkle
  • Lock
    Cross key
  • Collection
    303406  More
  1. Manufactured for Crypto AG (Zug, Switzerland) by AB Cryptoteknik (Stockholm, Sweden).
  2. Standard Latin alphabet (A-Z) plus four additional characters.

Pos Shape ID
31-32 13
30 12
26-29 11
25 10
21-24 9
20 8
16-19 7
15 6
11-14 5
10 4
6-9 3
5 2
1-4 1

CX-52/g   S/N 32047
The machine below was part of a special batch of CX-52 machines that were supplied in 1963 to the French Military Police 1 via Crypto AG's distributor in Paris (France): René Presseq de Chauny. The machine was supplied with 6 additional pin-wheels and with a special set of slide bars.

  • Model
    CX-52
  • Series
    C
  • S/N
    157/32047
  • Manufacturer
    Crypto AG
  • Year
    1963
  • User
    Gendarmerie 1
  • Wheels
    25 26 29 31 34 37
    38 41 42 43 46 47
  • Bars
    Special (see below)
  • F/V feature
    No
  • Print head
    Re-arrangeable
  • Typeface
    Latin (26)
  • Offset
    Adjustable
  • Letter ring
    Re-arrangeable
  • SPACE
    A, K, W
  • Paint
    Green wrinkle
  • Lock
    Flat cylinder key
  • Collection
    303690  More

 Detailed description

  1. Direction de la Gendarmerie et de la Justice Militaire, Sous-Direction de la Gendarmerie, Bureau technique. The Gendarmerie is one of two national police forces in France. It has military as well as civil duties and is responsible for the security of the President. It is the successor to the Maréchaussée.

Pos Shape ID
28-32 13
27 14
25-26 13
24 14
22-23 13
21 54
19-20 13
18 54
16-17 13
15 15
1-14 13

CX-52/RT   S/N 17961
The machine below is believed to be a standard issue CX-52/RT, also known as the RT/CX, which is the random-tape or One-Time Tape version of the machine. As it does not contain pin-wheels, the last bar in the drum is the only one that displaces the tape reader by one position. This is done by the A-cam of bar 32 in the left most position (i.e. the position of wheel 1).

  • Model
    CX-52/RT
  • Series
    D
  • S/N
    17951
  • Manufacturer
    Crypto AG
  • User
    Germany
  • Wheels
    RT-adapter
  • Bars
    Standard RT
  • F/V feature
    No
  • Print head
    Fixed
  • Typeface
    Latin (26)
  • Offset
    Adjustable
  • Letter ring
    Fixed
  • SPACE
    X
  • Paint
    Gray
  • Lock
    Flat cylinder key
  • Collection
    300159  More
Pos Shape ID
32 1
1-31 13

CX-52/RT   S/N 33355
This CX-52/RT was used for many years by the Dutch Foreign Office for communication with its embassies around the world. It's case was originally painted grey, but was later repainted silver. It was presented to an employee as a farewell present on his retirement. This machine features an exotic collection of unique slide bars, one of which has an inverted K-cam.

  • Model
    CX-52/RT
  • Series
    D
  • S/N
    33355
  • Manufacturer
    Crypto AG
  • User
    Netherlands
  • Wheels
    RT-adapter
  • Bars
    Special (see below)
  • F/V feature
    No
  • Print head
    Fixed
  • Typeface
    Latin (26)
  • Offset
    Adjustable
  • Letter ring
    Fixed
  • SPACE
    X
  • Paint
    Silver (grey)
  • Lock
    Flat cylinder key
  • Collection
    302062  More
Pos Shape ID
32 72
31 C
30 1 D 1
29 C
27-28 18
5-26 13
2-4 H
1 18
  1. Bar D in position 30 carries a metal bridge on its leftmost K-cam, that overlaps with the bars in position 29 and 31 (that do not have a K-cam).


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Crypto Museum. Created: Sunday 21 February 2021. Last changed: Sunday, 02 July 2023 - 07:50 CET.
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