Shropshire 7, Coalbrook Dale (Dalton & Hamer, page 223)

Denomination: halfpenny, scarcity: Very rare (RR)
7. O: View of a bridge. Similar to last, but with a vessel sailing under the 
      bridge, and the following legend above it in three lines: ERECTED |
      ANNO. 1779 | SPAN 100 FT HEIT. 50 FT. The outer legend as before, but dated
      1792. (Same as No. 6)
   R: A man working a machine. INCLINED PLANE | AT KETLEY | 1789. In three lines
      under. The 1 of date slopes to left in the ordinary way, and there is a
      period after KETLEY.

No. 7, RR.

Keywords

iron bridge at coalbrook dale,1792,erected anno 1779,span 100 ft,heit 50 ft,inclined plane at ketley 1789