Certainly looks like the one in Wikipedia. While working at Fort McHenry 
National Monument we had the opportunity to see some of the collections 
stored in the Civil War era bombproofs or ammo bunkers also associated with 
the US NPS site, where the Bowie collection is stored, of over 1 million mostly 
military artifacts, from "matchlock" rifles to WWI German pistols as I recall and 
often a number of each. One of the artifacts that we were shown was an 
enema in used during the Civil War which used kerosene. It was blue, a 
vertical cylinder and was run by turning a crank, mounted I think to a table, at 
least as it was shown and described and apparently is more directly cited in 
the parlance of American English judging by the hits on Google. Also perhaps 
from a similar rhyme from childhood:

Lincoln, Lincoln, I've been thinking,
What the hell have you've been drinking?
Looks like water, tastes like wine,
Oh my gosh it's turpentine!