Single Processor Countertop
~ 1000rpm Single Processor
~ Ballrace bearings
~ Single or dual treadle power
~ 8-cog calculus mechanics
~ Steam Upgradeable
~ Industry-standard gear ratios
~ Solid mahogany casework
~ Knurled brass actuators
~ Embrasures 1898® Servant as standard
Dual Processor Countertop
~ 2 x 1000rpm Dual Processor
~ Ballrace bearings
~ Dual treadle power
~ 16-cog calculus mechanics
~ Steam Upgradeable
~ Industry-standard gear ratios
~ Solid mahogany casework
~ Knurled brass actuators
~ Embrasures 1898® Professional as standard
To go back:

"Stalwart"™ Server Engine:
Steam Upgrades:
Incidental Componentry:
Embrasures® 1898: