set tit "Trip to London and Chepstow 24 Feb - 1 Mar 1987"
set label "+ ams" at    4.763385 , 52.30907		# Amsterdam, The Netherlands
set label "+ lgw" at   -0.1848285, 51.1518301		# Gatwick, London, GBR
set key

set xrange [-25:45]
set yrange [35:70]
plot 'europe-cil-10.dat' t "Coastlines" w l ls 2, 'europe-bdy-10-pre1989.dat' t "Borders" w l ls 1, \
     '1987-gb-12.dat' t "London and Chepstow, GB" w l ls 4 

set xrange [-13:7]
set yrange [49.5:59.5]
replot

unset label