Background.

On a scale of 1 to 10;
1-2. Suitable to be listened to by angels.
3-4; Very mild. Confined to intros, outros and the leads in/out at  beginning and end of sides.
4-5; As above but with some in quieter section.
6-7; As above but somewhat persistent.
8-9; Particularly annoying.
10; Someone has cleaned it using a Brillo pad.

On buying vinyl;
I  grade all my vinyl by sound, not by looks. I have many L.Ps that  look  'Mint' but play only v.g. or v.g.++. 
What  is almost inevitable is that older vinyl will have the occasional  mild click and will certainly have what I call 'background' – the  noise of the record/pick-up beneath the recorded sound. This is most  evident between tracks and in quieter sections. This is sometimes  referred to as 'static' but static can be removed by various  means and I therefore regard its use in this context as unintentionally  misleading. Some background can be removed by cleaning (See below)  but some is due to damage caused by previous use, and in particular by the use of a less than satisfactory stylus. Grading by sight will  not detect this damage. 
All  my records are cleaned using the Loricraft PRC4 and are very clean. This does not prevent them being, usually, between 40 to 60 years old.
Please  do not hesitate to contact me if you have any questions or you wish  for a more detailed account of any flaws.
But with confidence. No messing about. Money back if you find the grading unsatisfactory. Please read my reviews.

Combined postage whenever possible. 

Plain inner unless otherwise shown or stated.