Explanation from the seller [Showa Retro] Manufactured by Dainippon Fertilizer Co., Ltd. Sodium sulfur fertilizer Patented superphosphate fertilizer Wooden sign Existing signboards, especially those with clear text and official logos, are becoming increasingly rare and valuable year by year. [Size] Height: 44cm Width: 60cm Weight: 3488g [Condition] Good vintage condition. There is some deterioration due to age, but the letters and designs can be clearly seen. Please see photos for details.