Double Bass Bohmann basses

My name is Paul Warburton, i'm new to this forum and am a jazz double bassist in the Denver area.
I'm trying to find other owners of basses made by a luthier who lived in Chicago in the late 1800s-early 1900s named Joseph Bohmann. This is the most beautifully bizarre bass i've ever seen. It has mother of pearl inlays on the tips of the scroll. The machines are laid into etched cast iron full plates that are capped over the brass cogs and worm gears. The tuner shafts and turners are very large wuth three decorative holes in each turner. Five tuners. The scroll and neck are carved out of two pieces of ebony sanwiched in between three pieces of curly maple. The ebony fingerboard has channels carved into it under the G and B strings. On another thread of this forum, people are talking about 5 string low B basses and concerns about the lack of sound from the B string. This bass was made as a 5 string and has alot of added support designed into the inside of the top. The B sounds like a growling E on a 4 stringer and sounds like a pipe organ with the bow! The fingerboard is laid over the B side of the neck to accomodate the extra string and keeps the neck fairly thin. It has double shoulders, similar to some violones i've seen. It has triple purfling, including purfling in the edges where you lay it down. And yes, i use bumpers on the edges! The f/holes have lips carved around them. Double ebony inlays go from the button down the highly figured curly maple back and join the purfling in the bottom bout in a carved design. The ribs are laminated.
This instrument was aquired in Chicago in 1978 from the old Kagan and Gaines store on Wabash Street down town. It was tied up in an estate squabble and long story short, i'm the firstplayer/owner of this bass.
This is my first post and i'm sorry about the length, but i'm looking for anyone else who might own one of Bohmanns basses. He made almost every stringed instrument imaginable, including many stringed guitars with many drone strings and mandolins of his own invention. I will post some pictures when i learn how. All respect, Paul

Bob, Thanks for the kind words and it's good to be on TalkBass! Paul

You guys are great! Jeff, you're right about Bohmann (2 Ns) being no Shrinking Violet. There's a small label, where labels usually are, on the inside of the back, bass side, with a likeness of Bohmann with his shop apron on, a little shop hat, his arms crossed with a wood working tool in each hand. The exclamation " He challenges the universe to equal the tone of this instrument" Then, once when we took off the top to fix the neck block, we were able to see a huge replica of the regular label that almost fills the inside of the upper bass side rib! There was an article about Bohmanns guitars in a 1996 Vintage Guitar magazine. I bought two more of his basses later on, but they had been varnished by Kagan and Gains where I purchased them. They didn't have the fantastic machines, double shoulders, fifth string and the five piece neck on one had rosewood in the middle rather than ebony. One, I sold to a bassist here in the Denver area, and the other to a bassist in the Bay area. The owner of the store told me there ARE more of Bohmanns basses out there and he had a picture of one with the original machines.
Jeff i'm not familiar with the resources you mentioned...Tobi list and the Henley book.
If someone on the forum can tell me how to post pictures, I have a scanner and many pictures of my bass. As Bob Branstetter can attest, this bass is something to see! Thanks again for your interest. Paul

John, I think I will take you up on posting the Bohmann pics. Now, all i have to do is find them. I kind of doubt that I can get them to you by tonight. If i can't find them here, i'll have to get them from a friend who took them. I do promise to get this done as soon as possible though. Luckily for me, Bob Branstetter has already backed me up on the bass' existence!
I'm in the process of selling my house, so things are a little confused.
Change of plans....in a couple of days, another friend who's out of town will take digitals of the bass and i'll email them to you.
Thanks again! Paul

Jeff, I just came from your site. I'll have to get use to who i'm dealing with on this forum! Talk about heavy weights! Man, your work is just beautiful. I'd love to play one of your basses.

All respect.

Thanks alot Marcus!

Jeff, Bob and I had a partnership, Ross/Warburton Double Basses. We did a few basses under that name, then my wife of 26 years, Barbara, was stricken with ovarian cancer. I had to pull out of the bass making because I was her care giver. This lasted for 3 years and she lost the battle last September. Losing her had a great impact on me, and i'm just now climbing back in the saddle. I even gave up playing, haven't played a gig since her passing. Bob continues to make fine basses under his own name...www.rossdoublebass.com I'm getting back into it though and also deal in basses. Bob is one of my best friends and is a brilliant luthier.

I've been told that losing my passion for playing is just another manifestation of grief. It hits you where you live and playing the bass is where I lived. Joining this forum has been a big step for me because you all live in the same place! Also, I just became a supporting member...Thanks to everyone.