The Museum has a relatively small but interesting collection of postal items, i.e. leather mail bags bags, bicycles and motorcycles, trumpets, post office boxes, many postmark stamps, etc.
Given that the Postal Service in Greece gradually comprised the providing of both telegraphic and telephone services, one can see telephone and postal devices but simpler ones (e.g. clocks), too, bearing the then three-tau Postal Service emblem (TTT).
Typical objects are e.g. the JAWA Mustang 50cc (M23), Czechoslovak-built in 1979, used by the postmen in the province. Typical is also the table-type manual postmark machine made in Oslo in 1965 by Krag Maskinfabrikk.
The first automatic postmarking machines were invented in Norway by mechanic Karl Uchermann and were produced by Krag Maskinfabrikk in the early 20th century.
Among the most historical objects of the Museum is the great metal coffer of the early 19th century attributed to Ioannis Kapodistrias (first Governor of the reborn Greece).
It bears an emblem and a lock on the front. Inside the lock cover there is an engraved depiction of vegetal motifs and the initial letter “K”.
Interesting is the collection of post office boxes. Several of these are old post office boxes of foreign countries (e.g. Italy, Turkey etc.) and some of them are unique as the only one surviving from the time of the Autonomous Cretan State (1898-1913). Others have their own special story, like a German post office box, which was donated to Greek prisoners of the First World War. When the Greek 4th Army Corps of Eastern Macedonia surrendered to the Germans, because of the neutrality pursued by the King Constantine of Greece during the I WW, the Greek POWs were transferred to Görlitz (1917) of Silesia. The reception of the prisoners was particularly friendly. They were placed in auxiliary work and some even got married and stayed there. Some Cretans of the Greek prisoners, who had served as postmen, asked with the end of the war before their repatriation to be given the post office box of the local post office of Görlitz, which was accepted and thus the box ended up at the central post office of Heraklion in Crete.
Important is also the large telegraph and telephonic connection map of Greece from 1936 with a map legend. Noteworthy is the connection between Imbros (Imroz) and Tenedos (Bozcaada) with Lemnos.
There are still letters sealed with sealing wax and the related sealing utensils, postal uniforms of the 30s, stamping units, typewriters, telexes and other objects, small and large, which give an idea of the operation of the old post offices to its details.