I think you forgot to post a pic.

Lancaster O/Us, sidelock (this is an awesome gun, btw):

http://jamesdjulia.com/item/lot-1754-sca...rrel-set-59252/


Boxlocks, both 16gs:

http://www.hoferwaffen.com/hofer_10g.php?pid=46&cid=&lang=en

and

http://www.dogsanddoubles.com/wp-content/uploads/2013/01/Lancaster.jpg

The boxlocks look Belgian to me, like a boxlock version of a Defourny-patent O/U:

http://www.littlegun.be/arme%20belge/artisans%20identifies%20d/a%20defourny%20a%20j%20gb.htm

OWD


Good Gun Alerts & more:

www.DogsandDoubles.com