This is an original paint 2 hp. Shippensburg model with  round brass rod  , fuel pump and overflow mixer [ a rare option] 
Very nice engine , originally from Maine.
This is an all original paint 3 hp. Pan Cooled model with  round brass rod , Serial Number 1526 Year 1908, Norman Parrish Collection
All original paint 1 1/2 hp.  Farm Engine

1 1/2 H.P. Stovepipe
Year 1912 Serial # 7789

1 1/2 H.P.Domestic Type D
Located in Australia

This is an original paint 1 1/2 hp. Domestic Jr. Engine.
According to the owner this beautiful engine has never seen any type of inclement weather and it sure does look like it
This is a 1 1/2 hp Type "A" hopper cooled Domestic engine tagged as a "Leader Domestic" s/n 4201.  It first shipped June 3rd 1911 to Leader Iron Works Owego, NY.  It was shipped on skids and has "new style" base, piston, rod and crank. 

1906 Domestic 4 X 6 Air Cooled Serial Number 724
Don L. Kirkpatrick Collection
Restored by Doug Kelly, Lake Wilie, SC

Also look at the Model Engine page for more pictures of the great engine

Domestic Air Cooled , Serial Number 1072 Year 1907 owned by Larry and Ken Evans
Details of Air Cooled engine during restoration by Doug Kelly
Domestic Stovepipe , Serial Number 9932 owned by Larry Trammel
3 H.P. Domestic Traycooled , Serial Number 1093 owned by Mike Lucius
Engine Pictures from Friends
3 hp. Domestic
Don L. Kirkpatrick's tank cooled serial number 623