Grades go 100-800, lowest-to-highest, in increments of 100.
This came from an enormous lot which was donated to a building salvage store. They had me come in and figure out basics, and they'll list them individually on flea-bay. They had a few GBDs, a BBB, couple of Comoy's and Savinellis, another Preben Holm-era Ben Wade (same nomenclature as mine, minus the 'X'), six Israel-era Alphas, lots of Danish freehands of various sorts, some assorted British and Italian... probably 40+ total. Plus quite a few pipe stands, including three circular ones with days of the week printed, for your handy pipe rotation habit.
I ended up buying two: this, and a Soren sitter that looks, if you squint very hard, like a fish monster. Tilted so far forward that, looking straight at it, you can almost see the bottom of the bowl, with a wide, flat 'smoosh' base.
One side of the Ben Wade has forgettable grain:
The other is all killer straight & flame:
I'll take both to the local Tinder Box to get them, and their stems, buffed up a bit.