Catalog

Preliminary notes:

A) Please, take in mind that this is not an exhaustive list of preventorios and camp detachments, as we only list those with known pieces of mail sent to or from them.
B) Catalog serial numbers may not be consecutive in the following list, for they are assigned to pieces as being listed. As the catalog is organized by Preventorio and Labor Camp names, a catalog number may be under any epigraph without numeric order with the previous and the following. For a numerical list with all known pieces listed following consecutive catalog numbers, visit this section, and for a visual catalog, this other section. For the same list following a chronological order, visit this other section. You can also browse the pieces sorted by outgoing mail and incoming mail, and return to sender mail, in chronological order in each section.

The structure of the catalog of postal history related to the Servicio de Investigación Militar penal system is divided in two areas:

1- Chekas, officially known as preventorios: secret prisons in former civilian and religious buildings in Barcelona, and ships in the harbor. Usually all are considered part of the net of Labor Camp Number 1:

Preventorio A: Montjuïc Castle.
001 – July 19, 1938, outgoing mail
066 – October 15, 1938, outgoing mail
067 – December 12, 1938, incoming mail, returned to sender

Preventorio C: former seminar.
002 – August 11, 1938, outgoing mail
003 – October 9, 1938, outgoing mail

Preventorio E: Uruguay prison ship.
004 – August 26, 1938, incoming mail
005 – August 30, 1938, incoming mail

Preventorio J: unknown location.
006 – September 20, 1938, outgoing mail

2- Labor camps:

Labor Camp Number 1
007 – April 2, 1938, outgoing mail
008 – April 11, 1938, outgoing mail
009 – April 12, 1939, outgoing mail
010 – May 9, 1938, outgoing mail
011- May 16, 1938, outgoing mail
012 – May 20, 1938, outgoing mail
013 – May 25, 1938, outgoing mail
014 – Undated, outgoing mail

Labor Camp Number 2
015 – May 11, 1938, outgoing mail (Hospitalet de l’Infant)
016 – May 22, 1938, outgoing mail (Hospitalet de l’Infant)
017 – June 17, 1938, outgoing mail (Hospitalet de l’Infant)
018 – June 21, 1938, outgoing mail (Hospitalet de l’Infant)
019 – June 28, 1938, outgoing mail (Hospitalet de l’Infant)
020 – June 30, 1938, outgoing mail (Hospitalet de l’Infant)
021 – July 2, 1938, outgoing mail (Hospitalet de l’Infant)
022 – July 5, 1938, outgoing mail (Hospitalet de l’Infant)
023 – July 6, 1938, outgoing mail (Hospitalet de l’Infant)
024 – July 8, 1938, outgoing mail (Hospitalet de l’Infant)
025 – July 18, 1938, outgoing mail (Hospitalet de l’Infant)
026 – July 23, 1938, outgoing mail (Hospitalet de l’Infant)
027 – August 13, 1938, outgoing mail (Hospitalet de l’Infant)
028 – August 20, 1938, outgoing mail (Hospitalet de l’Infant)
029 – August 22, 1938, outgoing mail (Hospitalet de l’Infant)
030 – August 31, 1938, outgoing mail (Hospitalet de l’Infant)
031 – September 9, 1938, outgoing mail (Hospitalet de l’Infant)
065 – September 28, 1938, outgoing mail (secondary camp near Montferrer)
032 – October 27, 1938, outgoing mail (Sallent de Castellbò). Cover, probably sent by the administration of the camp.
Detachment in Tivissa
033 – May 29, 1938, outgoing mail
034 – June 5, 1938, outgoing mail
035 – June 15, 1938, outgoing mail
036 – June 18, 1938, outgoing mail
037 – July 6, 1938, outgoing mail
038 – July 10, 1938, outgoing mail
039 – September 10, 1938, outgoing mail

Labor Camp Number 3
040 – October 12, 1938, outgoing mail (Vila-sana)
041 – November 6, 1938, outgoing mail (Vila-sana)
042 – November 24, 1938, outgoing mail (Vila-sana)
043 – November 29, 1938, incoming mail returned to sender
044 – December 31, 1938, outgoing mail (Vila-sana)
045 – Unknown date, outgoing mail (unknown location)
064 – Unknown date, outgoing mail, (Arbeca)

Labor Camp Number 4
046 – June 16, 1938, outgoing mail (Concabella). Cover, probably sent by a guard.
047 – July ?, 1938, incoming mail. Cover.
049- August 30 [1938], outgoing mail (Concabella)
048 – August ?, 1938, incoming mail. Cover.
050 – November 10, 1938, incoming mail sent to a guard, returned to sender. Cover.
051 – Unknown date, outgoing mail (unknown location)
052 – Unknown date, outgoing mail (unknown location)
053 – Unknown date, outgoing mail (unknonw location)

Labor Camp Number 5
054 – January 5, 1939, incoming mail
055 – Unreadable date, incoming mail

Labor Camp Number 6
056 – August 11, 1938, outgoing mail (Falset)
057 – August 18, 1938, outgoing mail (Falset)
063 – August 18, 1938, outgoing mail (Falset)
058 – September 9, 1938, incoming mail returned to sender. Cover.
059 – September 18, 1938, outgoing mail (Arbeca)
060 – October 2, 1938, outgoing mail (Arbeca)
Detachment in Cabassers
061- Unknown date, outgoing mail
Detachment in Porrera
062 – Unknown date, incoming mail