cast iron briggs

hello all , please can anyone help ....I foolishly took the rings off a piston with out noting which groove they came off .....I have looked at many picture of different ring types and fitting instructions but have not identified my type ....so

the engine is 10hp horizontal cast iron (old style) 243400 ....the piston has 3 rings compression , wiper , and oil

1.. ring has an internal chamfer easily 2/3rds the thickness of the ring ...that finishes with a small flat at the bottom of the ring

2...ring has an internal chamfer only 1/3rd of the thickness of the ring that finishes with a larger flat at the bottom of the ring


so 1 ring with a large slope and 1 with a small slope , there is no steps or grooves just slopes

if anyone has seen this configuration what ring is fitted the first from the top of the piston (main compression ring)

regards Neil

cast iron briggs