Well _rap, I guess i should have paid more attention...I had asked about a field grade gas cylinder, i had, it had black paint on it??? Well just read on another site, that some early WW2 cylinder were painted? Too late now, mine has some new coating...Big problem, I cannot leave anything looking shabby...Discussed it before here, If i see dents, I steam them out, I hate OP rod dents, from the ride back in crates... Use my spare time to clean my rifles up, been using the Big red formula to clean the barrels, now Mom has rulled, it needs to stay out of the den..Seems it smells too strongly, but it sure removes the crud from the rifling....anyway...later..still raining here, supposed to watch for flooding on roadways..gonna be fun going home..