<p class="ql-block">旗杆石</p><p class="ql-block">Flagpole Stone</p><p class="ql-block">清朝时北京城驻防由八旗分管，崇文门迤东直至东便门由正蓝旗驻</p><p class="ql-block">守。此处是清朝守城军队用于固定正蓝旗旗杆的石板。</p><p class="ql-block">In the Qing Dynasty, the Eight Banners (military-administrative organizations of the Manchu were responsible for garrisoning the Beijing city. The Pure Blue Banner was in charge of the city wall from Chongwenmen to Dongbianmen. This is the slab stone that was used to fix the flagpole of the Pure Blue Banner.</p>