A military structure located near the coordinates 50.1578097, 17.3867591 in Czechia. The designation 'XIIb/17/A-140' follows a German tactical numbering system (Wehrmacht/Organisation Todt) used for fortifications, suggesting a possible World War II-era construction during the German occupation of the region. The term 'lom' translates from Czech as 'quarry,' indicating the structure may be integrated into or near a former stone quarry, a common practice for sourcing construction materials and providing natural terrain camouflage.
No specific historical records, function, or current condition for this exact designation are confirmed in the provided search results, which primarily concern unrelated U.S. military archival records. Further local historical or archaeological research would be required to verify its precise purpose, construction date, and present state.