Letters to Thomas Blackwood with a printed statement of the current price of East India piece goods issued by Ripley Brothers and Brown., 1837-1838., MS.30006, folios 194-196, 203-205, 281-282. Papers of William Blackwood and Sons., MSS.30001-30984. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/28652 Accessed September 24, 2024.