Thanks JDW. I meant to start with the Purdey backaction and move to psuedo H&H bar action. I can extract some of the images of the following Purdey lockwork and post if anyone desires:

http://doublegunshop.com/james_flynn_gun_cleaning_071704.htm

http://www.hallowellco.com/sidelock%20definition.htm

I don't concur with the stigma that a sidelock is superior to a A&D action body. Both have their merits.

Kind Regards,

Raimey
rse