Royal Copenhagen This is the 1956 year plate (Rosenborg Castle). Royal Copenhagen year plates, produced by the Royal Porcelain Factory, have been made every year since 1908, even during the two World Wars. This particular plate is 69 years old. The backstamp is correct. There are no chips, stains, or scratches/dirt on the foot, and it is in excellent condition. This item is a vintage piece and will enter the antique category in 30 years. * It has been sold at auction for between 40,000 and 50,000 yen. I believe there is no better gift for someone celebrating their 70th birthday (Kiju) next year. This is a perfect gift for your boss, father, or mother! Thank you for looking.