Purchased from an authorized dealer in the 1980s. It was around 200,000 yen at the time. I only used it a few times and then stored it away. It's a type that allows you to easily change various stitch patterns with a dial. I turned on the power and checked the operation. The upper thread sews beautifully, but the lower thread stitches are skipping and not continuous. If anyone is interested in using it for parts or adjusting it, please let me know.