Portman Estate area remained largely residential, attracting the prosperous middle class who wanted to live near the centre of London. There were also mews for tradesmen and servants. At the southwest corner of the Estate, where Marble Arch now stands, was the Tyburn gallows, London’s principal place of public execution until 1783. Development of the area north of the Marylebone Road around Dorset Square continued after 1815, and to the North West in Lisson Green, workers’ cottages were built from 1820 to 1840. Many of the original Georgian houses north of Portman Square were redeveloped as mansion blocks, which were let on
Allison Engine Testing Stands Allison Engine Testing Stands Allison Testing Stands is a heritage-listed engine test stand adjacent to 71 Amy Johnson Place, Eagle Farm, City of Brisbane, Queensland, Australia. It was built by USAAF 81st Air Depot Group and the Allied Works Council. It was added to the Queensland Heritage Register on 5 August 2003. The former Allison Testing Stands was an aero engine testing facility constructed in three stages during 1942-43 for the purpose of static testing of engines from the General Motors-Holden's Ltd overhaul plant at Breakfast Creek, Brisbane. Simple and functional in design, the site encompasses six open stands constructed