Up for sale is an Antique Planisphere Star Chart, Very Good Condition As Shown, Please see photos for details, Measures approx 12 1/4" x 12 1/4", This may be the earliest version as indicated by the info on back - J.L. Hammett Co Cambridge Mass Made in England - the later versions list several of Hammett's locations which opened after 1895 and were marked "Made in Great Britain", Great Piece!