Hi,
In the good old days before the trade description act (and other 'protective'
legislation) it was quite common for manufacturers or retailers of just about
anything to make, dubious, flowery or exagerated claims for their products.
BSA were no different and Webley behaved in a similar fashion to, all in an
effort to attract the buying public, they were acting in a way that was the
norm for the time. After all didn't The White Star line claim the Titanic was
unsinkable!
ATB Chris.