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In 2003 a rich Early Mesolithic peat bog site was discover in Western Poland and subsequent interdisciplinary project let to recognise the site as one of the richest North European Plain occupation from the point of view of the organic materials it delivered. A set of technological and typological analyses of find material, supplemented by palaeoenvironmental studies and almost 50 AMS radiocarbon datings suggest an affinity of the Mesolithic occupation with the early Duvensee/Komornica culture with probable short episode of the Maglemose culture group presence in the Boreal period. A considerable number of organic artefacts made on the spot accompanied by the Early Mesolithic lithic assemblage allow a direct on-the-spot confrontation of traces recorded on bone and antler tools and on production wastes with lithic assemblage that served for their manufacturing on different stages of the production cycle. In order to verify which tools and in what ways served for elaboration of bone and antler a selected sample of flint artefacts were subjected to micro-wear analysis. As a result a number of typologically different tools were identified, used especially for scraping. Single tools only were used for cutting, reaming, grooving, chiseling and drilling. Not always it goes along with the technological observations made during the analysis of antler and bone tools itself. Picks and flake axes, numerous within the lithic assemblage, were relatively often used for nicking in the process of antler tools' manufacturing. Technological analysis of organic material reveals that bone and antler tool manufacturing was a specialized chain of operations but not all the stages of production are manifested in the analysed material.

Rzucewo culture is a unique Late Neolithic/Early Bronze phenomenon related to some extent to exploitation of marine resources. For years these people were called seal hunters due to numerous faunal remains found in their settlements located on the southern Baltic Sea coast. It is also known for intensive procurement and processing of amber. Rzucewo culture groups left numerous flint assemblages produced mainly of locally collected flint pebbles with the help of splintered technique. Technology of flint production was very simple and uniform from site to site. Eponymous Rzucewo site delivered several thousand lithics with tool group dominated by simple retouched flakes and scraping tools like end-scrapers, scrapers and side-scrapers along with groovers and perforators, notches and truncations. The inventory itself does not show differences as compared to other Rzucewo culture sites and certainly is rooted in the older Funnel Beaker culture lithic tradition. Additionally, two specific features distinguish Rzucewo culture inventory form other Neolithic industries. First is the presence of tools with re-colored red surfaces that were later polished. These were not only small axes or chisel-like tools but also pebbles of raw material, and variety of other tools. Second is a specific polish observed with bare eye along the working edges of scraping tools and very often also reddish-yellowish in color. Genesis of that polish is not clear but may be related with amber processing. What is obvious in both cases, red ochre seems to be an important factor, perhaps of symbolic nature. The paper discusses results of technological, typological and traceological considerations aiming to shed light on the genesis of above phenomenon. It also attempts to evaluate whether this polish was of any importance for the subsistence or reflects extra-utilitarian cultural behavior.

The discovery of a cryptotephra (nonvisible volcanic horizon) in a windblown sand archaeological site in Poland highlights how luminescence and tephrostratigraphy may combine to better refine the chronology of such sites. In this study we identify a cryptotephra horizon which on the basis of major and minor element geochemistry and an OSL age of 2.3 ± 0.1 ka is correlated to the Glen Garry tephra. The different methodological strengths of OSL and tephrostratigraphy may be harnessed to counter the limitations of a single approach to produce a more secure chronology. Although in this study the tephra deposition event is shown to post-date the archaeological activity, the methodological approach is clearly demonstrated. Further investigations will reveal if cryptotephra layers are commonly preserved in such environmental settings. If this is so then future applications of this approach may prove to be more widely applicable.