The Great Seal
| Other names | Sangvik II |
| Owner | 1920 Johan G. Olsen, Kristiansand 1920 A/S Sangvik II (Johan G. Olsen, Ole Richard Olsen, Syvert Pedersen, Reinert Andreassen, A. Ekeberg, Andreas Krisiansen, O. Danielsen, Joh. A. Nilsen and Kristian Andreassen) 1924 Bernhard M. Thalberg, Ålesund 1926 Berthe Thalberg 1926 Thomas Schjelderup, Skånland |
| Ship type | Seal hunters |
| Reg. brand | M 80 A (1924) N 77 BN (1926) |
| Home port | Kristiansand - Alesund |
| Construction site | Høllen Shipyard A/S, Høllen |
| Year built | 1920 |
| Building materials | Three |
| Length, year of construction | 101 feet |
| Dimensions in width, year of construction | 25,8 feet |
| Dimensions in depth, year of construction | 11,4 feet |
| Tonnage | 203,95 GRT 219,01 GRT after refit 1922 200,71 GRT after refit 1924 |
| Machine, original | Bolinder 2 cyl. 160 hp |
| Skippers | Ole Hofseide |
| Reconstructions Shipyard | 1922 the hatch arrangement is changed In 1924, ice was seen on the ship. |
| Previous name | "Sangvik II" |
| Shipwrecked | Wrecked in the White Sea on April 3, 1928 |
| Additional information | On April 3, 1928, the "Great Seal" had been catching seals for a while, and they had 6070 seals on board. But they had room for a few more. The "Great Seal" was one of the larger ships and was thus in front of the other ships behind. They were about 8 quarter miles northeast of Orlov Lighthouse. In the afternoon, they wanted to try to get through an ice floe where the opening was quite narrow, but the ship got stuck and suddenly the ice started to turn.
The churning lasted about 15 minutes. Then it stabilized somewhat. The second engineer was sent on deck to melt dynamite so that they could use it to blast the ice that was pressing on the ship. But before the dynamite could melt, the ice had hardened even more. Now the entire port side was pressed in so that the forecastle opened and the row fell out. All pumps were started, but the inflow of water was too great. Within a few minutes the ship was full of water and the engine stopped. The ship was held up by ice presses for a while, and they succeeded in salvaging 300 seals, three fishing boats and six guns. Three hours later the "Great Seal" sank. After the sinking, the crew was picked up by the "Blue Jacket"
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