It was one of the suppliers in 72-73, more in Europe than the US. It works but has intermittent solenoid. It was on the 2000 on my Junior Z. Yes it's 9 tooth for 130 flywheel. No idea where you might get another solenoid but maybe it just needs cleaning up.
Thanks for the heads up -- thats the same one I am replacing with a newer, lighter version -- I just ordered one from Andy at Performatek so I guess my need is no longer acute! That old 14 lb 0.7HP starter is a beefy starter but unfortunately it turns over way too slow for me, and I wanted to get rid of some of the weight/moment arm that heavy starter puts on the bellhousing. THese new lightweight gear reduction starters are the way to go I think : will post my results once I get the thing here and installed!