Tubelining

Tubelining is a technique of ceramic decoration. It involves squeezing a thin line of clay body through a nozzle onto the ware being decorated. An alternative term is "slip trailing".

tube-lined vase, dated 1957, by Jessie Tait

The skill takes time to acquire and it is associated with art pottery rather than mass production.

UK production

Tubelining has been used by a number of firms in the Staffordshire Potteries.[1] In particular, the Moorcroft pottery continues to be well known for using tubelining as an integral feature of its designs.

USA production
Vase produced by the Arequipa Pottery

Designers using tubelining included Frederick Hurten Rhead, who taught the technique at the Arequipa Pottery in California.

gollark: Those aren't heaven and hell, silly.
gollark: > The temperature of Heaven can be rather accurately computed from available data. Our authority is Isaiah 30:26, “Moreover, the light of the Moon shall be as the light of the Sun and the light of the Sun shall be sevenfold, as the light of seven days.” Thus Heaven receives from the Moon as much radiation as we do from the Sun, and in addition seven times seven (49) times as much as the Earth does from the Sun, or fifty times in all. The light we receive from the Moon is one ten-thousandth of the light we receive from the Sun, so we can ignore that. With these data we can compute the temperature of Heaven. The radiation falling on Heaven will heat it to the point where the heat lost by radiation is just equal to the heat received by radiation, i.e., Heaven loses fifty times as much heat as the Earth by radiation. Using the Stefan-Boltzmann law for radiation, (H/E)^4 = 50, where E is the absolute temperature of the earth (-300K), gives H as 798K (525C). The exact temperature of Hell cannot be computed, but it must be less than 444.6C, the temperature at which brimstone or sulphur changes from a liquid to a gas. Revelations 21:8 says “But the fearful, and unbelieving … shall have their part in the lake which burneth with fire and brimstone.” A lake of molten brimstone means that its temperature must be at or below the boiling point, or 444.6C (Above this point it would be a vapor, not a lake.) We have, then, that Heaven, at 525C is hotter than Hell at 445C. – “Applied Optics”, vol. 11, A14, 1972
gollark: This is because it canonically receives 50 times the light Earth does.
gollark: Heaven is in fact hotter.
gollark: Hell is known to be maintained at a temperature of less than something like 460 degrees due to the presence of molten brimstone.

References
  1. Collections explorer Archived 2007-09-28 at the Wayback Machine; the website of the Potteries Museum & Art Gallery is a good resource for comparing the tubelining of Staffordshire firms.

See also
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