First Run Proto Star Orc ??? Errrr, Sidewinder ???

I just bought a box of discs from a person who no longer plays and hasn't played in a few years.
I gave more than I wanted to give but there were a couple collectable discs in the bunch as well as a brand new bag.
There is a brand new CE Eagle with some shelf wear but still in really good condition.
There is also what I believe to be a First Run Proto Star stamped Champion Orc. It is light blue with a silver stamp.
Does anyone know for certain if the Orc was ever stamped with a Proto Star?
It has the same dome and egde as well as the cut and angle on the lip.
I'm pretty sure that's what it is, I've just never seen a Proto stamp on one.
Thanks for the help guys.

[Nascar Dave]

One of the other discs in the box was a Gummy Pink Champion Sidewainder at 150g.

[Rescue]

Man, I looked high and low, but I drew a goose egg. No lettering on the bottom?

[Nascar Dave]

Not that I could see but it's been overcast so when we get a semi sunny day I'll take it out for natural light as that always seems to work better for highly faded markings.

[Coolhand]

never seen a proto stamp orc. it might be a starfire or sl though.

[Nascar Dave]

I will compare it to the starfire as I hadn't thought of that yet, but I thyink the starfire edge is slightly angled and a little fatter than this disc. I'll check and see though, that and the sl.

[Nascar Dave]

Doesn't look like a Starfire either as the lip is slightly thicker and a little higher but the dome is about the same and the underside of the lip is pretty close too.

[Rescue]

Does the stamp cover the whole disc, or is it a "mini" star? If it's a full cover stamp. They made some Champ TL's with the full cover star stamp approx a year or two ago. No rhyme or reason for it. They just did it. I bought a few and they all had the silver stamp.

[Nascar Dave]

I'll post a picture in a second but it's a mini stamp and the disc is probably three or so years old. The lip is not as wide as a TL or Teebird either.

[Nascar Dave]

it's about 1/16" wider rim than a TL

[Nascar Dave]

also, the Starfire has about a 1/16" wider rim than this disc

[Nascar Dave]

picture of the stamp

[Nascar Dave]

haed to tell on the tape, but right at 3/4" width