A transmission apparatus configured to communicate with a reception apparatus. The contacts are mounted-within the interior of a housing, and a movable-contact member selectively establishes contact between the stationary center contact and the stationary first contact, and between the stationary center contact and the stationary second contact. For a mold set including two molds, each of the molds is provided, at an outer circumferential region thereof, with portions to be gripped, to allow the transfer apparatus to perform transferring to the object.