In July 1969 an inhabitant of the village Mieczki-Poziemaki submitted to the State Archaeological Museum a group of objects evidently originating from a lost cemetery of Przeworsk Culture: a pottery vessel with a smooth black surface, presumably a cinerary urn, with some cremated human bone, a smaller pottery vessel, four clay spindlewhorls, and fragments of a bone comb (PMA/IV/6550). Apparently, these objects had been discovered at a depth of 1.25 m, in a sand quarry known locally as Żal (‘Sorrow’), in the village Mieczki-Poziemaki, distr. Ostrołęka. A rescue excavation made that same year by Alina Kietlińska of the State Archaeological Museum failed to identify any other archaeological features. The site of the cemetery as confirmed by a field survey made in May 2007 was on the southern margin of the village, to the east of the village road, an area of a 50 cm deep pit, which suggested that the grave-field had been completely destroyed. The larger vessel is a biconical vase with three handles – a form used quite commonly in Przeworsk Culture during phase B2 for cinerary urns. Vessels of this description, with a rich ornamented upper body, sometimes of several different motifs, are characteristic for the eastern zone of Przeworsk Culture. The smaller uncharacteristic vessel with an angular shoulder finds analogies in cemeteries at Nadkole 2, distr. Węgrów, and at Kołacz 2, distr. Mińsk Mazowiecki, where these forms are assigned to phase B2. The comb fragment correspond to type AI of S. Thomas, commonly encountered on Przeworsk Culture territory and on the Elbe R. during phase B2 and at the onset of the Late Roman Period. The clay spindlewhorls are longlived forms recorded often in sites of Przeworsk Culture of the Roman Period. It seems that the cemetery at Mieczki-Poziemaki was a burial ground typical for the eastern zone of the Przeworsk Culture. Despite the small number of finds now at hand Mieczki-Poziemaki is an important site on the archaeological map of Przeworsk Culture settlement on the border zone of Early Roman Period Przeworsk settlement in north-eastern Mazowsze.