Hi all,
I wanted to resurrect this old thread because I think this is a unique piece in Bach's line and trying to figure it out gave me a bit better understanding of the small shank Bach pieces.
As mentioned above: there's no Bach literature (that I can find) that mentions this piece. However 16s show up on eBay from time to time.
The rim profile is unique; it is wide, has a very strong inner bite but is somewhat (but not extremely) rounded toward the outside; this is compared to several other Bach pieces from this time period which are much more even and narrower; see photos (16 is on far right).
https://www.dropbox.com/scl/fi/24apslxx ... x8n1t&dl=0
https://www.dropbox.com/scl/fi/x7q5v12l ... 5thyd&dl=0
I've seen/owned some Bach "W" mouthpieces and "SC" mouthpieces both of which have cushion rims. The 16 rim is not that. The cushion rims are much more rounded on the outside edge. Unfortunately I don't have any right now to compare directly, but here's a close up of the 16 rim and here are links to other Bach cushion rims to show differences.
https://www.dropbox.com/scl/fi/wx6cl1ec ... irci9&dl=0
https://rvb-img.reverb.com/image/upload ... cqwqlr.jpg
https://static.mercdn.net/item/detail/o ... 1643202337
I agree with the OP; this piece has a very small diameter, although not significantly smaller than a 12c when measured by my highly-clinical quarter testing. It is smaller than a 7c/11c, see photo. However I disagree with it being very shallow. It is demonstrably deeper than it's neighbors the 15c and 17c; I also have a 12c and 7cthat are shallower, and an 11c which is the same depth see photo.
https://www.dropbox.com/scl/fi/36gw11c5 ... e9za2&dl=0
https://www.dropbox.com/scl/fi/rofwysxz ... wh9kl&dl=0
I measured it's volume (with a graduated cylinder) as greater than the 15c, 17c, and 12c too. Smaller than a 7c or 11c though. I think this is due to it's unique cup shape which I'll discuss below.
It's worth noting that very small mouthpieces were popular in the New York era; Bach describes the 15c and 22sc on their list of most popular mouthpieces here:
https://bachloyalist.com/wp-content/upl ... _page2.jpg
The16's throat is also distinct. As far as I can tell it has not been altered. However, I learned it has a .236 throat and a unique reamer which is not the same as other Bach small shanks. I learned this from James New who copied this piece for me and made screw rims for it. Shout out to James New for his work here: not only do I like the copies as much as the original; the work is so well done I can't physically see the screw rim when glancing at the mouthpiece, or feel it with my finger, see photo. He also made a delrin rim for it for me with equally good, tight tolerances. Amazing work.
https://www.dropbox.com/scl/fi/kmconosj ... q0g87&dl=0
Another shout out to Ken Titmus for making an ebonite rim for it, see photo. I prefer the Delrin but both Jim and Ken are ridiculously easy to work with and do outstanding work.
https://www.dropbox.com/scl/fi/t1hchnj0 ... z07ed&dl=0
Anyway what really makes me think this is a unique piece in the Bach line is the cup shape.
According to Dave Harrison and others with scans to prove it, there is not a large difference between the 7c, 11c, and 6 3/4c in terms of cup shape; the major difference is the rim shape.
https://wedgemouthpiece.com/100c-gen2-p ... outhpiece/
I've also found similarly-aged 12c and 15c pieces' cup shapes to be remarkably similar, and want to retract some of the belligerent complaints I've previously made about Bach consistency because later models are also similar (at least in terms of cup shape profile), as are other companies' versions. See photos.
https://www.dropbox.com/scl/fi/n8vsmo4c ... 8hr4l&dl=0
https://www.dropbox.com/scl/fi/bhzh4hgh ... ygvgq&dl=0
The 17c is another animal however. It's VERY bowl shaped. I have two of them, different ages. They are consistent, see photo. They play weird.
https://www.dropbox.com/scl/fi/2dvpxooj ... smqgn&dl=0
Unfortunately I don't have a lot of Bach "no letter" mouthpieces to compare against the 16, but I do have an old old old 7 with a very voluminous cup, see photo.
https://www.dropbox.com/scl/fi/a3fmwygv ... l2ob6&dl=0
However, the 16 cup shape is NOT the same as any of these pieces, and is so unique that as I said I think it was an attempt to fill a whole different place in the lineup. The cup wall descends almost vertically then has a noticeable shoulder and is almost a straight funnel to the throat. See photo.
https://www.dropbox.com/scl/fi/8x3qtuc3 ... skv9o&dl=0
There are other mouthpieces which are similar. My Warburton M cup is the closest, but a bit shallower; Doug's cups have similarities as well. The Giddings Almont is a bit different but preserves that funnel aspect. See photo.
https://www.dropbox.com/scl/fi/ez85vij8 ... urwt4&dl=0
My hypothesis is the 16 was Bach's attempt to produce something consistent with Almont or Giardinelli at the time; The rim is not dissimilar from a Giardinelli W rim or the Almont rim, and the cup profiles are similar. Makes me really want to try the Greg Black NY Legend pieces!! I think that players who can tolerate smaller mouthpieces and who enjoy mouthpieces like the Warburton or Giardinelli M cups or Doug's cups might like this piece.
I play this piece most of the time now. Rather, I play the New copy with the delrin rim most of the time. I do a lot of three horn section live work and I need a ton of endurance and something that blends well with high trumpet and screaming tenor saxophone. That said, I do not consider the 16 a screamer. It's nothing like a 15ew in character, feel, or sound. It's also not like a Warburton S cup, Rosolino/Steinmeyer, or Curry S cup. The 16 is not as shallow, and is clear but not shrill or edgy. And in spite of its rather angular cup shape, the sound has body and is somewhat malleable. It speaks very fast. The Warburton with a similar cup is also one of my favorite mouthpieces, and I have always loved Doug's stuff too. Perhaps I just like this cup shape?
Anyway I love going on deep dives like this because I feel like they give me some insight into the history of brass making.