I think you could get more than a tenner for it... as salvage the three speed hub alone is worth > $30.00 as it is a 50's model and these are very well made.
It looks like a very nice bicycle and the name is very cool... believe it must have been inspired by the popularity of the Musketeers during the 60's.
The real D'artagnan was an impressive figure as well.
The hub shell will have a date code on it.