Long shot but it seems they don't make Revolution wheel bolt washers in this size anymore.  I only need one chrome washer, condition of chrome not important.  size is as follows

outside diameter 27mm, inside diameter 14.3mm, thickness 4mm.  the outer edge of the washer has a slight bevel

I'll have look but they are like rocking horse poo

Have a look in the washers section on the left

http://www.grayston.biz/wheelnutmenu.htm

Have a look in the washers section on the left

http://www.grayston.biz/wheelnutmenu.htm

Already checked out the usual places Dave, it seems all the modern ones are only 24mm outside diameter

I'll have look but they are like rocking horse poo

Thanks Gary, must admit you were my main hope on this one

I may have one or two but need to check.

I'll have a look tonight Paul, got a few spare washers, whether they are the right ones is another matter.

Got some spare standard flat washers that size but only 2.6 thick I use on my revolutions for the winter if you want some. Even the beetle used a selection of them and the correct washers due to unavailability.

Centreline washers are similar ID ok OD 2mm short and incorrect bevel   - sorry mate - good luck with the hunt = just an idea could not a local machine shop/engineering/ fabricator knock up a few in a lathe.

Many thanks everyone, I've got one, perfect match, just got to get it rechromed.

Thats good , I was going to look tonight, but now I don't have to