- New Mexico, US
...did you happen see the link I provided in reply #11 ?This is my own conslusions/thoughts. They are based on articles, books, contact with guys who knows and have worked on Martin saxes and a former Martin worker (in the 50') that I had contact with in late 80's.
Where were they made?
I don't think they were made in separete buildnings . But two companies IBICO (Indiana Band Instruments Company) and Martin Band Instruments. In the 50's they were made in the same building but not at the same time. The staff was told to clear out the benks/workplaces and make ready for Indiana production. They used old tools for Indiana. The tempo was high and the quality control was less. The shouldn't so much time on each saxophone. So they did lots of Indian during a short (some weeks or months?) time. And If you see the serial charts many Indiana were made in late 50's. But It was also during thes years the big market for student saxes increased.
What was the design?
I think te early versions were just a cheaper model. Bare brass, maybe bodies and necks that were not good enough to sell as a Handcraft. I don't know if there were sopranos, or c-melody. I've seen baris. And Martin never made bass saxes for the market. Maybe some prototypes? I guess the ones with split bell keys werer based on old Handcraft saxes. I pretty sure the Indiana saxes are based on Handcraft Standard and Handcraft Special. The Committee model were a complete new construction when it reached to market in 1935. The soldered on toneholes had bevelded toneholes on HC STD and HC Special and Indiana. But never on a Committee. The neck is also different on these models. The Eb vent was never on a Committee sax. But you can never be 100% sure. I can't see any bigger changes been made on the Comittee tubes over the years, The necks became a little bit longer and the bell flair became also wider on "The Martin" (Martin never used Committee I or III as model names, just Comm II). The Martin saxes had many patents. The "polyconical bore" (was the last patent on an American saxophone 1947), the combined neck, bell to body brace, low Bb and Bb key guards .... were all us patents in 1947. Nothing you do over short period so I guess the started with this before WWII. To have a second line or student sax made out of new patents are very unlikely. So I don't think Indiana shared the same body and taper as the Committee models. Maybe some detalais that they used on Indians but nothing that changed the sound. Two things I've think a lot about. Why did Martin continued with soft soldered tenoholes on a student sax while the labor cost wnt up after WWII? What about the few Kohlert (Winnenden) saxes in the 50's that had the same type of toneholes. Also on some Keilwerth and Hohner? There was a insrument manufactor in PA, USA called "Imperial"that Martin bought up?
(And did anyone here happen to read thru that thread ? (It is long, yes) )
That was a thread begun by a person who had a some relatives/family members who worked at Martin. To me, it gives some pretty definitive answers as to the structuring of the factory(ies)....FWIW