Models View all Packard (Roll Royce) Merlin Upper crankcase assembly 19 89 0 Two stroke swash plate supercharged diesel engine. 93 501 14 Milling machine 67 693 7 Mantel chiming clock 17 55 0 Original Odhner calculator main assembly and base parts 22 84 8 Original Odhner calculator readout and tab assemblies 20 59 0