it is interesting to whistle students that details become more focused as collections grow and comparisons can be made finally.
Take for example the lowly TOOTHGRIP – not something aften discussed or thought about for sure…..
We remember that a selling point for Metrpolotan Police whistles at first, was supposed to be that beauforts in general had no toothgrip for keeping the hands free, so they replaced them with a model that did. ( Of course Barrall, Hudson, DeCourcy all manufactured beauforts for many years after the Metro that DID have toothgrips didn't they ?? )
On the other hand virtually ALL round whistles that were used for police, railway, fire brigade, prisons, and military purposes have never had toothgrips !!!!
What about escargots ??