Hi. I have just acquired a 4' X 6' sunoco sign post (I think) sign which should have the straight across arrows.. (1926 - 1938) (they are missing). Currently this sign is single sided. Would anyone be able to provide me with the dimensions for the add on arrows? I know from the staining they are 5 1/2 inches wide where they attach to the main sign. Information i need is:..how wide is the arrows at the feathers and the pointed part? How long is each arrow section? I think you will be able to see a picture at http://home.att.net/~rjjmitchell/sunocosign.jpg