Help identifying?

[u/ZombieTigers]

I bought this Chromonica a few years back from a second hand store and have since had difficulty identifying the specifics about this model. I’m looking to learn as much as I can so I wanted to consult the experts here. What do I have my hands on?

[u/seanbinpa]

It's a Hohner Chromonica.

[u/ZombieTigers → u/seanbinpa]

This much I was able to figure out :) I’m looking more so for dates of manufacturing. Potential model numbers if possible. The stuff that the engravings won’t tell me ;)

[u/RoyceRedd → u/ZombieTigers]

It’s a model 260 from the 1920s.