Below is a limited quantity of the case examples that I have available to show. This does cover most of the range created. For the best information on case designs and when they were available, and in which finished I like to refer to the original catalogs. You can find most of these at the excellent The Sax Museum website - they probably have the best collection assembled of original Martin Catalogs and price lists ever assembled.
You can click each of the below to view additional images of each case in higher detail. These represent the 1930's to late 1950's era of cases.
Martin Handcraft Era Cases
Martin Handcraft Imperial Bb Trumpet Case
• All black exterior
• Black Leather handle
• Martin Handcraft Badge
• Brass hardware
• Interior Options: Blue or Green Interior
Martin Handcraft Standard Bb Trumpet Case
• All black exterior
• Black Leather handle
• No badge
• Brass hardware
• Interior Options: Blue or Green interior
Martin Handcraft Bb Trumpet Form-Fitting Case
• All black exterior
• Black Leather handle
• Martin Handcraft badge centre
• Interior Options: Purple or blue interior
Martin Handcraft Committee (Lifton) Bb Trumpet Case
• NB: Handle shown here is non original
• All black alligator grain exterior
• Plush interior with additional compartments
• Interior Options: Deep Red/Purple
Martin Committee (Mid 1940's to 1960's)
Martin Committee Bb Trumpet Case
• All tan leather exterior
• Edges that are stitched down the edges of each side of the case.
• Martin Emblem badge RH corner
• Brass hardware
• Stitched handle
• Interior Options: Green, Coral or Royal Blue
Martin Imperial Bb Trumpet Case (1950's to 1960's)
• All tan exterior
• Plain edges
• Martin Emblem badge RH corner
• Brass hardware
Martin Indiana Bb Trumpet Case (1940's)
• Dark brown patterned exterior
• Brown Leather handle
• Indiana badge
• Brass hardware
• Interior Options: Blue or Green interior
Martin Indiana Bb Cornet Case (1940's to 1950's)
• All tan exterior
• Dark alligator print dark edges
• Indiana emblem badge RH corner
• Brass hardware