Hey SB,

Thanks for the info. I had no idea when this guitar was built cause I can’t find any other stamps besides the inside label that has the H6691 stamp. The only thing I found in my web searches was this old thread.

That would be great if you could post the catalog info even though it only goes to 6659, I would still like to see what some of those models look like. I have never ran across another Harmony that looks like mine so I’m wondering if it was custom built. Found it in a pawn shop years ago and it still sounds great.

Thanks again,

Mach