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In 1957 the locomotive was bought by British Railways and at first was misallocated the number 90733 (now carried by [https://kwvr.co.uk/steam-train/war-department-wd-austerity-2-8-0-90733/ another preserved locomotive]), following the Austerity 2-8-0s series with which it had been confused, but quickly altered to 48773 at the end of the LMS 2-8-0s.<ref>[[Bibliography#Books|Casserley (1976)]] p. 208.</ref> Although withdrawn twice for scrapping, 48773 survived each time, finally ending BR service in August 1968 based at Rose Grove .<ref>[https://www.brdatabase.info/locoqry.php?action=locodata&type=S&id=119234&loco=70500 48773 on BR database] (Retrieved 26 December 2020)</ref>  It participated in July 1968 when it participated several end of steam railtours including two organised by the [[Manchester Rail Travel Society#List_of_rail_tours_organised_by_the_MRTS|Manchester Rail Travel Society]] in conjunction with the emergent [[Severn Valley Railway Society]], the ‘grand latter being the 'Farewell to B.R. Steam', the grand finale of steam’ steam over the trans-Pennine route via Copy Pit summit. It also worked <ref>[http://www.sixbellsjunction.co.uk/60s/680728ct.html ‘Farewell to B.R. Steam’ 28 July 1968 on Six Bells Junction] (Retrieved 26 December 2020)</ref> Also notable is the LCGB ‘Farewell to Steam’ on 4 August 1968<ref>[http://www.sixbellsjunction.co.uk/60s/680804lc.html ‘Farewell to Steam’ 4 August 1968 on Six Bells Junction] (Retrieved 26 December 2020)</ref>.