The museum was built to shelter and exhibit finds from the excavations of Carl Blegen at the Palace of Nestor in Epano Englianos, as well as those of Spyridon Marinatos in the regions of Pylia and Trifylia.

On either side of the entrance stand large burial pithoi of the Middle Helladic period, from the tumuli of Kokorakou, Peristeria, and Agios Ioannis, Papoulia.

[1] The building has two stories: the exhibition space is on the elevated ground floor, and the basins are used as storage for the archaeological material and as a study area.

The galleries hold finds from the excavations of the Palace of Nestor, the tholos tombs of the Englianos area, and other nearby archaeological sites.

[2] Cases 1, 2, 4, 6, 7 and 8 display finds from the extensive cemetery at Volimidia, dated to the Late Helladic I-IIIB (Mycenaean) period (1550–1200 BC).

The Late Helladic tholos tombs, although relatively small (average diameter 5 meters) were rich in grave goods, particularly in luxury items.

Among the pottery exhibits is an alabaster, with alternating black and off-white slip in a wavy pattern, a bevelled jug with spiral motives, and a pithoid jar decorated with schematic ivy leaves.

Between cases 3 and 4 stands an enormous burial jar from the tomb (literally a grave circle) of Agios Ioannis, Papoulia.

[citation needed] Case 4 also contains pottery from Tragana-Voroulia, dated to the Late Helladic I period including Keftiu cups.

Case 5 contains more items from the grave circle of Peristeria, including an early figurine from Messenia representing a female figure in a long dress.

Among the items from this tomb were three pithoid amphorae with floral decorations consisting of lilies and ivy leaves and a squeezed bronze two-eared vessel.

Case 6 displays items from the Kefalovryso and Koroniou tomb groups including a large beaker (or stamnos) decorated with double axes, similar to those found in Royal pit I of Mycenae.

Tomb 5 contained items of the late Helladic and Protogeometric periods, including two medium-sized jugs, one decorated with a maeander design, and a copper double axe.

There is a frieze with nautilus-shells from corridor number 48 and a façade of a building decorated with consecration horns, a typical cult symbol of the Minoans, from the courtyards south of the vestibule.

Case 17 contains more painting fragments including rosettes (from staircase 54), a battle scene over a river (from vestibule 64), and lyre player who was probably the last figure on a large wallpainting depicting a procession.

The lyre player alludes to Apollo and to Thamyris, a musician from Pylia, who boasted about his musical prowess and therefore was punished by the muses (Iliad, 2 594–600).

In case 18 there are a collection of painting fragments showing a female head named “The White Goddess”, nautilus shells, blue birds, and a bull-leaper that was found in a pit in the floor of the wine magazine.

These finds include amphoras, a krater with a depiction of a hunting scene, and a stemmed open cup or bowl with a linear white decoration, reminiscent of pottery from Early Modern Greece.

Case 22 contains pottery from the Palace's pantries and from the dumps of the acropolis including cups, kyathoi, kraters and some beveled jugs.

Case 24 contains storage vessels from the palace's pantry 68, workshop 55, and wine magazine 105 including a brazier made of clay.

The items include Late Helladic pottery, prochoi, a three-eared amphora, a pair of copper scales, a personal care set made of copper and ivory, sheaths for daggers which apparently formed part of a Mycenean warrior's armour, and a large number of daggers and swords, some of which are bent.