I've know of B&S and Migma co-ops for quite awhile, but of the various makers represented by these groups, only played Hoyers. I've found Hoyers a little inconsistent, but the good ones are great. Well, recently ran into an unbranded Migma. From my limited understanding of the co-ops, it seems that only those makers who have passed the Meister exams are allowed to stamp, otherwise it is just stamped with the co-ops name. So this one was presumably a lower quality instrument. Dead-on copy of the Knopf model 13, which I've played, loved, and hoped to acquire. It was a seamed, hand-hammered bell, and played amazingly well, but didn't have the cash for it. But, it did let me know that Migma really did put out some quality instruments. So, to my surprise a Meister Karl Dressel, Migma came up much cheaper, with split bell, and stop valve that works on both the F and Bb side. I could afford it, and looking to off-load my back up "big orchestral, loud, ultra mellow" horn. Put that one up for consignment, and ordered the Dressel (no other bids on ebay, so got it very reasonably). It is a very nice, professional level horn, brighter, slightly quieter (not much) horn, that notches easily, has an amazingly fast action, and sits easily on high notes. The bell is hand-hammered, can't tell if it was slightly out of round just because of that (it's very light) so the screw connection is sometimes grumpy, but works fine after 50 or 60 years. Great opera, or chamber group. Wouldn't play with any group over say 50, it might not carry over as well, but it really plays great. I've play Alex 102's and I think this is probably better. I'll have to take measurements of the bell ring set, because I'd love to try others. I'd watch for these Migmas