I’ve visited the Washington Missouri factory and they have museum on cobs there.
What gave MM the lead on cobs started with a patented plastering process that adds durability to the aged cob. Most all their pipes are still plastered, each one by hand, today. Don’t buy the “naturals”, you’re giving up quality to look like Tom Sawyer and Huck Finn on a raft.
Also the larger cobs like the General or Country Gentleman are worth the price because of better stems, bigger cobs, and a dowel insert. Only MM can raise their patented seeds to that size to make them.
A $15 Country Gentleman or General is the best buy for any pipe in the world, I think.