I have a 1936 Sears Handiman WT with a cast iron shroud Briggs model Z engine and it has two dipsticks [one in the base of the engine and the one that stands behind the tractor] 
I know the dipstick that stands behind it is a few quarts low - but there are concerns about the other dipstick as well....
The engine oil dipstick has no marks what-so-ever. Not a "fill to" line, no knurled place, nothing. Just a steel rod hanging from under the cap. How's a dummieeee like me to know how much oil to put in?

I know the dipstick that stands behind it is a few quarts low - but there are concerns about the other dipstick as well....
The engine oil dipstick has no marks what-so-ever. Not a "fill to" line, no knurled place, nothing. Just a steel rod hanging from under the cap. How's a dummieeee like me to know how much oil to put in?