Hi All,
My first posting on here so be gentle!

I found the guild a few days ago and Im overwhelmed by the quantity of information on here. Its quite amazing.

Despite all that Ive searched and browsed but I cant find the answer to my question - its likely on here somewhere but I cant find it.

I am making a world political map for a website and I am looking to recreate the dashed border/neatline found on old maps, for example this one:-


Can anyone tell me how to create this effect in photoshop ( Im still using the original photoshop CS )?

Thanks in advance