A British auctioneer is offering two diagrams of the illfated liner Titanic for sale on Oct 29 The diagrams were used during the official inquest following the ships sinking in 1912 auctioneer Andrew Aldridge said Wednesday A 325footlong 99meterlong cutaway diagram of the ships interior also used at the inquest fetched 220000 pounds 363000 at an auction at in April by Henry Aldridge and Son in Devizes in southwest England