An accessory kit, model #186, comprising a self-timer (for instant film development), a cable release, an accessory holder and a tripod mount. They are all stored in a felt-covered plastic box with transparent plastic cover. It goes into an original packaging box.
The self-timer was made in Japan, the cable release in West Germany, and the other two parts in the U.S.A.
This accessory is not mentioned in the very useful Land List
website.