Can someone please help me picture the following situation?

> 
> A **lop-sided board** drooped over the garden wall, announcing that it was 'to let on very reasonable terms, well furnished.
> 
> 
> 

Charles Dickens, [The Haunted House](http://books.google.it/books?id=Bf0aBAAAQBAJ&pg=PA20&lpg=PA20&dq=lop-sided%20board%20drooped%20over%20the%20garden%20wall&source=bl&ots=jvsvH1zDV_&sig=Lz1-JKoOOZxgtp3yEDA9OrEklZU&hl=en&sa=X&ei=hAR7VNWvFazX7QawjYHgDg&redir_esc=y#v=onepage&q=lop-sided%20board%20drooped%20over%20garden%20wall&f=false)