Blueprints 2 BF Keith Memorial Theater - Opera House, Boston Massachusetts Tweet Do you have an update on the current status of this structure? Please tell us about it in the comments below. October 27, 1927 PROSCENIUM BOX TREATMENT December 12, 1927 ELEVATION OF PROSCENIUM BOX January 6, 1928 SECTION OF MOULDING AROUND PENETRATION ON SOUNDING BOARD October 1926 ELEVATIONS OF ARCADE, STAIR HALLS, A FOYER, AND GREEN ROOM, AND ARCADE, A FOYER, AND GREEN ROOM CEILING PLANS