She was the first of 12 vessels built to her design.

All vessels would be built in Washington as required by state law.

It's not clear when the first vessel was built there, or by whom.

Military analysts say a similar vessel could have been built for Sh1.8 billion.

The requirements come into force for vessels built after 1 July 2010.

Although still building vessels, the company is now focused on other product lines.

Every floating vessel was put to use and more were built.

But ship building was the principal business, with eight large vessels built in 1880.

"And how many months would be required to build a vessel of from 250 to 300 tons?"

There is some speculation as to why the other two vessels in the class were not built.