well I agree with Greg and Edna. yes batches were made for years, however, we have several box sets with matching rows. One is pictured in rogers book. acquired from roger. with exact matching marbles, one row of teal green and egg yolk. That particular type was only made for a short period of time, due to annealing issues. No question they came from the same run, as the patterning and colors match exactly to the one next to it.
Point is, have you ever tried to backfill a box with dead on matching marbles? good luck.
yeah they used the same recipes for the 'runs'. Just by definition, if they make a batch of just red snakes for one or two full days, that would be a run in my book. When they made a specific kind, lets use these sparklers, and filled 100 count boxes that day all day long, then by definition, they would all be from the same run. Same looking at our 100 count of master sunbursts. matching rows,