The stem is the classic Cinelli 1A, in a 130mm length, with 26.4 clamp diameter. 

The bars are the Cinelli "Giro d'Italia" model 64, in a 42cm center to center width.  

The bars have the lovely "compass rose" logo, made in the late 80's/early 90's.

I had these on a custom full Super Record road bike I built in 1992, which was a weight-weenie wall queen - it had superlight tubulars and I didn't trust them for long rides, so this bike had maybe 200km on it, tops.  So the stem and bars are in excellent shape, see photos - no scratches worth mentioning.  The stem was installed at the max line so no scratches to show once installed.  There's glue remnants from the previous Cinelli bar tape, but of course you won't see that when you wrap your bars.  I like to leave that glue remnant in place on bars, because a lot of new gel-type tapes will slip and slide, this gives the tape some grip.

Thanks for looking!