Ghost trigs

[ted1]

> On Harris, at least two (and probably more) Hydrographic Survey Stations are marked on OS maps with triangles but are actually bolts

Thanks! I'll add those to the wiki page.

Ted

[tim747]

TP11083 - Eastington (rivet) has appeared as a Trig symbol on Memory-map 1:25k
(Note that this was not on earlier editions)

[ted1]

TP11083 - Eastington (rivet) has appeared as a Trig symbol on Memory-map 1:25k

Thanks; I'll add it to the wiki page.