Gene,

Purdey and Scott entered into a reciprocal arrangement.

“Purdeys quickly realised the superiority of the Scott top lever allied to their bolt and made a reciprocal licensing agreement with Scotts; Purdey could use the Scott lever in conjunction with their bolt and Scotts could use the Purdey bolt along with their lever. In addition Purdeys could licence the dual patent to the London gunmakers and Scotts to Birmingham and the regions. Such licences were not cheap, Purdey charged the London gunmakers £2 per gun for the right to use the Purdey bolt and Scott top lever.”

Page 121, Donald Dallas, The British Sporting Gun and Rifle.