Mechanical prototype of the MVD RF enclosure. Constructed and tested in summer 1995 by Carmen Sifuentes, Jehanne Simon-Gillo and Jan Boissevain. The actual RF enclosure is constructed of Rohacell and aluminum; this prototype was constructed of cardboard and aluminum which mimicked the thermal properties of the actual enclosure. An acceptable PHENIX Experimental Hall dewpoint was defined with this prototype. Results can be found in PHENIX-MVD-95-13.