Batboard

I was just looking at some ASTRO Sabers (Model 1s). The seller claims that it says "Flashport" on the back but has no number. I've never come across this before... Why would this happen? My curiosity is piqued now.

My uhf as1 has a tag like that, says flashport, but no number on it. Its not the original case, as mine was a 1r, but it has all factory green tags that came on the case.

A lot of old replacement housing came witrh a flashport tag intact on the rear, but blank.