Article
無線電指導飛行 - The Radio Wave Leading the Flight

Article
窗檻的防盜淚氣 - Gas Device Set by the Windows to Prevent Thieves

Article
自蘸印墨的日戳 - The Date Seal Which Refills the Seal Paste Automatically

Image
自蘸印墨的日戳 - The Date Seal Which Refills the Seal Paste Automatically

Subject matters: Still life,
Medium: Photograph-Monochrome

Subject matters: Ornament,
Medium: Line drawing