I have a synchromatic tobacco sunburst arch top. The stamp inside is smudged and there is a penned 5985 written. Any idea of date for this guitar.

Yep... mid-1940s.

We'd like to see a pic or two.

Here's a pic

I have the same bridge 'n base and tailpiece as yours Hil. They certainly are elegant!

Numbering? Isn't that a racetrack in Germany?

I'll see myself out.