No Edition Remarks. 18 pages. Blue paper cover. Ring binding. Facsimile folded diagrams and illustrations to rear. Pages are mildly tanned with minor foxing throughout. Slightly rusted binding with staining to most pages and reverse sides of covers. Folded illustrations and diagrams are noticeably tanned with creases and small tears on folds. Thumb-marking present throughout. Paper cover has noticeable edge wear with creases and tears. Visible tanning to spine. Inscriptions to front cover. Noticeable black marks overall. Book is curled. Water staining to front cover,.