Need help identifying this unusual three tab shingle

Can anyone help me identify this three tab shingle? The shingle measures 39 1/4" x 13 1/2". No identifying marks on the back of the shingle. I’ve checked the major manufacturer’s websites, but can’t find anything close to this. Thanks!

They almost look like the IKO skyline kind,maybe these are the starter course for them?..i dunno…

It kinda looks like a old Globe shingle.