If you are lucky you will see a number stamped in there that has an H in front of it.This will be the model number (the digits after the H which stands for Harmony).The letter stands for the season and the number is the year.
There are so many models and brand names of Harmonys and they cranked them out in such huge numbers that they were not all marked very well.
You can email me at the address at the bottom of this page.
I get a ton of junk mail in that box, so if you use the header line "Kent guitar", I'm less-likely to miss it.
The photos are either internet findings or photos that have been sent to me.
Most of the information comes from what is purported to be a 1963 catalogue.