With a small parlor sized body, this Ditson instrument is surely an interesting one.
Likely a slightly later example with some help from Lyon & Healy, these instruments were originally built by Martin for the Oliver Diston brand in the early 1900's. Branded only in the sound hole with a simple label, this is an interesting example albeit, in a bit of disarray.
This parlor sized guitar features a spruce top with marquetry binding, a Chicago style bridge, and solid stained mahogany back & sides. The top is very lightly ladder braced, with a thin fairly chewed up small bridge plate. It is designed with a 24" scale, a thick V neck that is made of a stained lighter wood (possibly a pear wood), with an ebony fingerboard that is fully bound. It has bar frets and a nice inlay pattern.
Sold as is, this instrument needs a fair amount of work to be up and running again. First, the body has a fair amount of cracks present that would need to be addressed, as well as a separation from the back. The top requires a bit of attention with missing binding and a misshaped center seam. One might consider rebracing this at this point, and addressing the previously mentioned bridge plate. The bridge appears to have been reglued at some point in its past, but requires a new saddle. The neck would need to be reset, and the binding reglued.

Dimensions:
Width at the upper bout, 9.25"
Width at waist, 7.5"
Width at the lower bout, 12.875
Body Depth at base: 4"
Body Depth at heel: 3.125"
Soundhole, 3.25"
Total length: 18.125"