I believe this item is from the period, but I have no way to prove it. It's a child's toy from about 50 years ago, so I'm listing it as junk. *I cannot say whether the muffler is original, so please judge from the images.* Although it's old, I think it's rare to find a Kamen Rider that hasn't been played with by children, so I hope you'll understand. The soles of the feet are stamped with the Bandai Banzai mark, Ishimori Productions, Mainichi Broadcasting, and Toei. *This is not a mask-detachable type; it's approximately 36cm from the tip of the antennae.* For size comparison, I've placed a standard-sized Godzilla, which is often seen, on page 17. Godzilla is shown for comparison only, and *is not included in this listing*, so please be sure not to misunderstand. The neck, both hands, and both legs are movable. I don't think there's any looseness in the joints; rather, they feel stiff. However, the looseness or stiffness of the joints varies from person to person, so please understand. *Since this is an old item, I haven't disassembled it for inspection, so please consider it as junk.* *There is damage on the back; I don't know if it was there originally or occurred later.* On pages 18 and 19, I've included a picture of the same type of Kamen Rider from the Kamen Rider Goods Encyclopedia for reference. The Kamen Rider in the book also has paint over the damage and dents; please check the images. Since it's over 50 years old, I assume there may be paint over dents and damage, so please understand. Also, there may be overlooked scratches, stains, dents, distortions, wear, discoloration, paint peeling, and repainting, so *please judge carefully from the images and purchase only if you are satisfied.* *Soft vinyl figures have been rising in price in recent years, and they are becoming scarce even in major shops.* Personally, I think the price is *very high*, and I plan to gradually lower the price. Thank you for your understanding. Since this is a junk item, a child's toy from over 50 years ago, I cannot accept any claims or returns. The images shown are all that is included. *To prevent swapping, I cannot accept returns after purchase, so please understand.*