Hard to guestimate size, could it be an air filter cover/shroud/thingy . . . ? Traveling prayer mat, something to ward off the 'G Men', I give up.
hah...Guess it wasnt that hard to figure it out.It`s an S&S E carb bird deflector. It`ll have a fine mesh screen filter to prevent motor destruction. Nice one man...if I had some shirts left I`d send you one for guessing.