Roland D-50 3d model in multi formats (.c4d, .max, .3ds, .obj, .dae, .wings) all textured !
.c4d formats:
R12 (and later) & in R14 .c4d files
include default C4D materials +Textures (included in ‘tex’ folder) in .zip archive
textures simulate ‘used instrument’ (pretty old)
info text included in .zip
Bonus : PN D50 00 memory card included 
see images for more info about this model.
Enjoy
staiff.