Thanks to everyone for your help. Yes, it definitely looks like one of the Doll Model 354 steam engines. Not sure which version it is (1-5). Here are the dimensions you requested. Base: 5.25" 133 mm Boiler Diameter: 10.125" 257 mm Total Height 12.25" 311 mm - Note: Does not include the missing smokestack.
Based on your comments and comparison with the photos I've now seen the engine is missing the following parts:
Smokestack - missing
Burner - missing
Water Filler Plug - missing
Boiler Sight Glass - missing
Boiler Drain Valve - damaged
Governor - partially missing - the mounting bracket and pully are present
The piston, crank, and flywheel are not frozen and move freely.
Thanks again, Wayne Wright