Antique, original patina brass binnacle cover, beautiful condition for age, smoothly slides open and closed, side to side, small brass knob. Inside measures 10 7/8"Diameter x 6 3/4"H (at center, including hardware pieces). Rolled rim has two tiny holes, 11 1/4" apart, for mounting. Opening 12"W side to side x 6". Minor dings, scratches, and marks, commensurate of age and use, (not bad). Knob is on solid. Item is in good soli...d, working condition. 12 photos are a part of this description.Florida Residents: 6.5% Sales Tax.