The paper describes the process of salvage works involving a wartime mural preserved in a utility building in Nowy Staw. It is also a story of a unique memento left behind by British prisoners of war, a material symbol of remembrance, its exceptionality justifying the use of extreme and considerably difficult conservatorship measures. Succinctly referred to as a transfer, the relocation of a painted work onto a new surface is a conservation measure greatly impacting the structure of the original work. Separated from its primary surroundings and location, the painted layer loses its integrity and interior context for purposes of which the work had been created. Frequently carrying a major risk of losing painted layer sections, the technique is only reached for in conservatorship practice in the absence of other effective artefact salvaging methods. In case of the mural described herein, critical factors included the unstable structure of the building holding the work, its planned demolition, and the unquestionable historical value of the only remaining Stalag XX B keepsake. Stalag XX B was a World War II operation in Wielbark, near the present-day Municipal Cemetery. This is where Germans imprisoned British, French, Belgian, Italian, Russian and other soldiers, forming them into forced labour commandos and sub-commandos. Stalag prisoners worked in factories, bakeries, shops, horticulture and agriculture; they constructed and repaired roads, bridges and railways; their work was essential to loading and unloading coal, gravel pits, and urban area maintenance. Transferring the mural onto a substitute surface turned out to be the only way of salvaging the wartime memento, duly adapted to allow exhibition in museum space. Conservation works were carried out in the year 2020, and concluded with a display of the piece on substitute surface in a bespoke-design casing, as