SURVEY OF CANNON ON THE DERRY WALLS – QUOTATION REQUIRED February 21, 2017 by oschair The Ordnance Society has received an e-mail regarding the above, with a response required by 27th February. See the ORDNANCE RELATED EVENTS PAGE. Share this:TwitterFacebookEmailPinterestPocketPrintLike this:Like Loading... Related Author: oschair Currently Chairman of The Ordnance Society