The way I understand this time period is Gibson started using the paddle joint around this time. They also started gluing the top over the neck joint.
My questions are:
Did Gibson do the paddle joint on every guitar?
Did Gibson glue the top over the joint on every guitar?
How likely is it that I will encounter one or both of these issues?
I have an early 70s j-45 in. The bridge is shaved down, the saddle is at its lowest point, the frets are at the end of their lifespan. I was going to get it all done in one shot. Its playable now but could be a little better. Since it needs a refret I thought this would be the perfect time to replace the bridge and reset the neck. I am trying to guide the customers expectations as to cost and time. I know it will take more time and care if it is a paddle joint or if the top is glued over.
OK, I'll bite,
I have to confess my ignorance as to what a "paddle joint " is.
I know what a neck dovetail joint is , and I know what a headstock scarf joint is, but I have no idea what a "paddle joint " is.
Here is a thread from 2014 with some discussion on the topic. http://fretsnet.ning.com/forum/topics/gibson-j55-neck-reset
There are two images posted by Dan Elliot at the bottom of page one. This is another type of joint you may run into. A dovetail that has parallel sides, no V shape at all. I did a Gibson Gospel a year plus or so ago with one of these #!!*#^! joints. It was very heavily glued in the dovetail and also the heel to the sides, they spared no expense on glue. The dovetail completely filled the mortise, no pocket for my steam needle. I started with holes through the finger board but ended up cutting off the fingerboard extension for better access. Much frustration getting this one apart but I eventually did.
If you get the neck off, can you post pics? I've one of these in at the moment.