Barrel vault Horae ad usum Parisiensem. Source: gallica.bnf.fr Bibliothèque nationale de France, Département des manuscrits, Latin 1158, fol. 27v. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.