That picture was from a full Steven's product catalog - here is one from a Steven's pocket pocket catalog just for the 425 thru 440. Has scope mount info on one page, the scopes were dropped from catalog's before the rifle was, some catalogs even have the scope information counter-stamped as "discontinued". I also see another note with the scope info that I am not sure of the meaning - "Fitted with Pin Sights which are adjustable for elevation."
[Linked Image]

I also found the link to the 435 that sold didn't seem to work (I was looking to see if the 'frosting' on the breech block showed at all - nothing I can see. http://www.amoskeagauction.com/103/700.html

Here it sold again - I think in about three or four more auctions it's going to be mine! http://www.amoskeagauction.com/104/1556.html

Last edited by GeneB; 12/03/14. Reason: added second auction