LONDON -- A British auctioneer says two diagrams used in the official inquest into the sinking of Titanic will be offered for sale on Oct. 29.

Andrew Aldridge says another 32.5-foot-long long cutaway diagram of the ship's interior fetched 220,000 pounds ($363,000) at an auction in April.

The liner sank in 1912 after hitting an iceberg.

Aldridge said Wednesday the two diagrams in this sale are more modest in scale.

One showing deck levels and the placement of lifeboats measures 74 inches by 56 inches. The presale estimate is 40,000 pounds to 60,000 pounds ($63,000 to $95,000).

The other, a plan of first-class accommodations, including pictures of some of the cabins, measures 29 inches by 41 inches. The estimated price is 30,000-50,000 pounds.