This antique vintage retractable mechanical pencil is a rare find for collectors of writing instruments. Its unique feature is a perpetual calendar, adding to its value. The pencil has a twist mechanism and is made of silver tone metal. Its lead diameter is unknown, but it is in good overall condition. Normal age and use wear to finish.Please view all pics provided. The pencil's country of origin is unknown, adding to its mystery and allure. Its vintage status is confirmed, making it an even more special piece for those who appreciate the beauty and history of writing instruments. This rare find is perfect for collectors or as a unique gift for someone who appreciates the art of writing.