While the Chinese characters inscribed on doors have become illegible with the passage of time, clearly visible are the diagrams of the Book of Changes inlaid around the brass door knockers (center).
前一層雕的有松樹與花鹿，後面則雕成細條窗櫺，其間還藏有「玉堂春富貴」五個字。四角再由蝙蝠銜住（取其與「福」同音之兆），光線由外面傾洩而入時，很有戲劇化的效果。想像當年夾著紗時，光線必更有似夢還真的意趣，這的確是一流的佳構。