Robert Lochner (engineer) harbours to Franklin Roosevelt and Winston Churchill. The decision to go ahead was taken and full-scale trials of the floating breakwater started in April 1944. During the trial, an onshore gale produced heavy seas, but Robert's bombardons calmed the waves effectively. Assembling two Mulberry Harbours the day after the landings on 7 June 1944 was one of the most remarkable engineering feats in history. A total of 1,500,000 tons of harbour equipment had to be taken across the channel in an operation involving 150 Allied tugs, and by D-Day 'plus 12', most of Lochner's concrete breakwaters were in position. On
International Convention to Facilitate the Importation of Commercial Samples and Advertising Material International Convention to Facilitate the Importation of Commercial Samples and Advertising Material The International Convention to Facilitate the Importation of Commercial Samples and Advertising Material is a 1952 United Nations multilateral treaty. States that ratify the treaty agree to allow product samples and advertising material into the county duty-free. The Convention allows the duty-free importation of commercial samples that are determined to be of "negligible value". It also allows the duty-free importation of advertising material such as catalogues, price lists, and trade notices. The Convention was concluded in Geneva on 7 November 1952. It was signed by six states and