Very interesting. Another symbol to add to the "Old Farm Code."
The new "Farm Code D1.1:2015" does include some limited information regarding welding symbols without dimensions, but even this one might stump the boys on the D1 committee.
Al
Peter makes an interesting possible application from ISO. With that, how about anything in EN codes?
But, as per John's statement, if we are GUESSING... I would wonder about it needing to be a multi-pass fillet weld to totally cover the size of the bevel groove weld based on one of the previously mentioned associations.
Just my two tin pennies worth.
He Is In Control, Have a Great Day, Brent