Most visitors online was 1660 , on 12 Dec 2020
PM sent, thanks much.On pg. 8 of the '84 catalog, it appears to represent the "Office Long Drop Regulator." This was available in a DIY "pre cut or uncut." Also metal & glass, blueprint, no movement or blueprint only.
Movements ar shown as "3300X or 3301X."
High price kit without movement was $142.50
Dial, about $9.00
Movement $69.95 to $72.00
If you care to, I can scan pertinent pages and burn to cd or dvd for you, but I'll need contact info. You can pm me.