Hi Marrakai , good to see you here again !

If I could be so presumptuous , I think I have a pic of that here .

From what I have found , most of the sporters were made by BSA and had extras added or finished by the other frims , after the Lee-Speed patens ran out , they stopped putting it on the actions , I have seen a couple of very "Lee Speed" looking rifles having the charger bridge , some chargers were added to the early actions , you just had to ask for it & you got it !

Later Lee Speed's (A term for the sporter) no longer had Lee Speed stamped on them .

Here is a 1905 BSA sporter with the bridge .