Keith, that first reply was advising you to re-post this in the "Super" forum where you'll likely receive more responses.  The "Imperial" forum's scope doesn't include vintage audio equipment.

At below link they will at least know what a Glaser-Steers is.  If I still had a bench and mag-lite I could do it.  Or talk you through the typical needs.

GS was rather remarkable.  Not terribly expensive yet features no one else had, simple mechanism and very rugged.  4-pole motor where others in-class were 2-pole.  Auto-intermix sizes and speeds.  Platter stopped during cycle; novelty really, records don't really 'skid' on each other's playing surfaces.

Not exactly "precision" though.  Class below Garrard RC88 in that sense, certainly in the early/mono version.  2 classes below Garrard AT-6.  Suspension a little clunky, seemed designed around the rugged GE VR2 cartridge.  Speed ran fast but since the idler was actually 2 wheels (with a clutch between them) one could 'lathe down' the platter wheel with an emery board to precise speed. 

Used them and their rumble, pitch and wow and flutter were really quite low for that era. Not up to the level of a DUAL of the time, but quite a bit better than anything BSR was putting out and to my ears (I suffer from perfect pitch) better than anything in the V-M line and, yes, Collaro. I do think Stromberg-Carlson was probably using higher quality specs. sort of like Kenmore versus Whirlpool back in the day, the Kenmore's just seemed a bit better in many ways.

You're probably going to have to rely on expert advice and do it yourself.

Oh, and yes, the pitch was a bit high. Not by much, though and let's be honest, Garrard was all over the place on that, even in their lower Zero 100 range. When their drive gears weren't melting and spreading fire..... (no, not in love with Garrard or BSR). Collaro was enormously better in their quality control.