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HER Number:33247.05
Name:BOSIGRAN - Undated tin mill

Summary

The lower dressing floor of the 1861 Bosigran stamps.

Grid Reference:SW 4293 3723
Parish:Zennor, Penwith, Cornwall
Map:Show location on Streetmap

Protected Status: None recorded

Other References/Statuses

  • Cornwall SURVEY NAME (temporary): NT 94497,CCRA 115-19
  • Primary Record No. (1985-2009): 33247.05

Monument Type(s):

Full description

The lower dressing floor of the 1861 Bosigran stamps is recorded on the 1st Edition 1:2500 OS map of 1876 and was planned at 1:200 by the National Trust in 1982 (h1, b4-6) and was visited by Herring in 1986 (h2, b6). It serves the lower stamping mill (33247.09) and comprises a roughly rectangular platform on the west side of the Portmeor stream together with the stamps themselves and the wheel which worked them (33247.10). Tin slime from the stamps was brought to the dressing floor by the way of a stone lined culvert at the base of a platform. The dressing floor contains three poorly preserved rectilinear tanks to the south of the stone lined rectangular tanks which are in turn to the south of a trapezoidal tank 5.2m long, 1.8m wide which may be a trapezoidal buddle (b6). The floor is supported to the north-east by a stone revetment. Steps run down to the dressing floor on the north side of the ore delivery platform (33247.10) (b6). The dressing floor was probably re-working material which had already been dressed once in the upper stamping mill (33247) (b6).

--------------------------------
Site history:
1: 1982. THACKRAY, D / NT
2: 1986. HERRING, PC / CAU
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<1> Spargo, T, 1865, The Mines of Cornwall (Bibliographic reference). SCO4470.

<2> Ordnance Survey, 1880s, 1st Edition 1:2500 Map (Cartographic materials). SCO4048.

<3> Noall, C, 1982, St Ives Mining District, 107 (Bibliographic reference). SCO3994.

<4> Cornwall Archaeological Unit, Field Drawing (GRE), GRE 2128, 42, 43, 51, 75 (Cartographic materials). SCO5089.

<5> Cornwall Archaeological Unit, 198-, Drawing Archive, Hanging (GRH), GRH 241-4 (Cartographic materials). SCO5088.

<6> CAU, 1984, Field Survey Context Card, 79-118 (Bibliographic reference). SCO5175.

<7> Herring, PC, 1987, Bosigran, Zennor, 52, 141-148 & FIGS 35-39 (Bibliographic reference). SCO3569.

Sources / Further Reading

[1]SCO4470 - Bibliographic reference: Spargo, T. 1865. The Mines of Cornwall.
[2]SCO4048 - Cartographic materials: Ordnance Survey. 1880s. 1st Edition 1:2500 Map.
[3]SCO3994 - Bibliographic reference: Noall, C. 1982. St Ives Mining District. 107.
[4]SCO5089 - Cartographic materials: Cornwall Archaeological Unit. Field Drawing (GRE). GRE 2128, 42, 43, 51, 75.
[5]SCO5088 - Cartographic materials: Cornwall Archaeological Unit. 198-. Drawing Archive, Hanging (GRH). GRH 241-4.
[6]SCO5175 - Bibliographic reference: CAU. 1984. Field Survey Context Card. At CAU. 79-118.
[7]SCO3569 - Bibliographic reference: Herring, PC. 1987. Bosigran, Zennor. Copy At CAU. 52, 141-148 & FIGS 35-39.

Associated Finds: none recorded

Associated Events: none recorded

Related records

33247Part of: BOSIGRAN - Undated stamping mill (Monument)

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