Civil War Infantry Colonel Shoulder Straps wanted

[farcwarts]

Does anyone know where I could get a matched pair of original Civil War Colonel of Infantry shoulder straps? I am seeing occasionally examples at dealer sites for excessive prices and not even believing them to be Civil War issue. Civil War eagles were made with a fairly consistent technique that sets them apart from post war examples, so I would know one once I saw it, so if you are unsure and want to post a photo that would work as well or send me a message if that is somehow possible (I am new to this website and not sure of the features). Any help you can offer would be wonderful. Thank you.