A couple mystery guitars

[S-ten]

I'm looking for some information on these, neither have serial numbers, the USA made harmony has numbers scratched into the back of the head, and I haven't been able to find any info on my Kent, I will post actual pictures of it later but it's Identical to the red one besides the color







There are deep grooves in the fretboard but don't affect the strings it plays incredibly well and sounds amazing









Heres the actual kent, anyone know where I could pick up a tremolo bar for this thing? and I haven't found much information about it, anything helps

[Michael Ambrose]

The first one id definitely a lower-end late 50's/early 60's Harmony...

Second one's a late 60's Kent 834.

[S-ten]