Holland and Holland Royals are a very well made gun .One of there strengths is there simplicity , they have over the years had several minor changes but the gun is essentially the same .
As with all older guns , the biggest problem is what has been done to the and by whom? I get to see some very nice guns that have been repaired on the cheap in the past which then makes my job harder as I often have to over come the previous work before I can start to do what is required . Dovetails in the hook or having had the action squeezed to tighten for example .
H & H single triggers are for the most part relatively trouble free as is there ejector work , the Boss or Purdey both having more parts . Simplicity that affords the opportunity that most gunsmiths will know the system .
As with all second hand goods ,no matter how you dress it up ,there is risk and I would advise any one to get the thing appraised by competent person ,if there are any doubts . Get written guarantee as well.