Its like the one in this pic, but shows some wear and tear. I will get the exact measurements, but I think its on the smaller side around 26x38. The boss on mine has been reshaped and is made from brass.
I think I also have an oval flat auxiliary shield painted green that I could part with. I am scaling back all my Roman kit, because the interest has died with most of the local guys and I need to pass this on to someone who can use it.
$80 for the scutum and $55 for the aux. shield. This does not include shipping, but I am willing to meet someone within an hour or so of Charleston WV. I will ship them, but shipping is on you.