[Don W]

I think that the letter from olde English/Norse you are referring to is named *Thorne*. It looks like this:
Þ
and as you say, is pronounced like “th” in the or there.

To get the letter to print like I did, hold down your alt key and using the numeric keypad type 0222

[tnlibertarian]

Thanks. Looks like that is it. While the one you posted doesn’t look much like a Y, per Wikipedia (I know), later versions of it start to do so.

[radmanptn]

All right I did that and got Þ. So out of curiosity I typed atl 0228 and got ä still being curious it typed alt 0871 and got ͧ is there a cross reference for this somewhere?