I was with Kevin who took this picture while we were with British Deaf Astronomical Association group running trip to Turkey for an eclipse.
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BSL
Astronomy
(British Sign Language) 
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BSL available
at ENS optical
Astronomy Telescope
retailers at Birmingham
Facetime
Derek can help with it. -
British Sign Languages
Interest to learn
BSL Basic for fun?
o
More information
for your BSL journey. -
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BSL available
at Roboscopes
Facetime
Derek can help with it.