Every CRT that Tektronix made since around 1968 or 1970 has had nothing but an internal graticule. This one definitely has the CRT. Beware the "hangar queen" with too may parts missing, however. If the price is right, you can afford to take the fall if the CRT is bad. But if they want too much for it, it's no bargain. A scope with this many "minor" parts missing may have some major problems with the CRT. But usually, the CRT of a Tek scope is danged reliable. The ones that I've replaced have been because the scope was dropped, not because the CRT just "went bad".
Dean