what does it mean if the silverware from W M Rodgers has 817
Epsl in the back of silverware mean the name of the company that made it. Epsl stands for international silver.
secret
84% pure silver
That it is 99.6% pure silver.
OVB is not a cooking term, but is a brand of silverware.
That is the symbol for Gorham silver. Perhaps you found Patent 1895 on the back of silverware.
I'm not for sure but, i think it's rather how much iron or how much oxygen was used to create the silverware. That or that's how many electrons there are on the metal.
The Roman numeral XX represents the number 20.
It is probably IS (International Silver) and just hard to read.
Hydraulic Mean Radius = Cross sectional area of conduit divided by the inside (wetted) perimeter.
The silverware is called Community.