My old Gibson soprano has a slightly different voice than the old Martins I have heard.
I also have a 1926 Tenor with a sunburst top that is a real sweetie too.
I have a late 20's sunburst Gibson tenor that is my go to uke.
I also have a Martin 60's tenor that is wonderful too - just a slightly different sound.
The Gibson/ Martin sound differences that apply to acoustic guitars seem to apply to ukes too:
Martin sweet, airy, lots of overtones; Gibson sweet, woody, "bluesy", more focused.
In fact my favourite pastime at the moment is playing blues on my Gibson.
They're pretty rare beasts - maybe $1500USD.