1930s? Salvador Ibanez neck joint

[MANDOLINMYSTER]

I recently picked up a basket case Salvador Ibanez spanish guitar. She's a beauty if you can look beyond its sorry condition. I have done many neck resets on mandolins and American guitars but I have no idea if this is a dovetail or a tenon.
I will try to attach a few photos. if anyone's ever mess with these and can share some experience that would be great.

[sunburst]

Does it have a 'foot' at the base of the head block (where the block glues to the back)? If so it might be Spanish style construction.

[MANDOLINMYSTER]

Yes it does. The back was loose everywhere but on that "foot" took a little effort but I have gotten the back off.
I have several pictures but I cant figure out how to post the dang things.

[sunburst]

With the back off you can see if it is Spanish construction (the sides are let into slots in the head block). Those necks can't really be re-set, but you can "slip the foot" to restore proper geometry. If you don't see sides let into slots, you have some sort of neck joint, but I have no idea what it is.

[MANDOLINMYSTER]

Yes it does. The back was loose everywhere but on that "foot" took a little effort but I have gotten the back off.
I have several pictures but I cant figure out how to post the dang things.

Ok figured it out

[MANDOLINMYSTER]

m

[multidon]

That doesn’t look like any Spanish heel I’ve seen. In fact I can’t tell from the pictures what kind of joint that is. It looks like what passes for a neck block is slapped together out of cutoffs they took out of the scrap heap.

[MANDOLINMYSTER]

Yes I was suprised at the crudeness of construction. When I researched the early Salvador Ibanez guitars they are quiet sought after with the classical players, I was expecting finer craftmenship. Additionaly there is evidence of previous repairs. Oh well I will forge ahead as its still a worthy project.

[sunburst]

...It looks like what passes for a neck block is slapped together out of cutoffs they took out of the scrap heap.

Perhaps not. If it is Spanish construction, the heel of the neck is continuous with the neck block. If the heel is a separate piece glued to the neck shaft (a common practice in classical, Spanish, flamenco and even some steel string guitars, sometimes multiple pieces forming a "stacked heel") that could account for the inside part (the "block") looking like it is glued up from pieces. In fact, it is glued up from pieces if my suspicions are correct here.

Can we see a photo directly above the heel showing whether or not the sides pieces are fit into slots?

BTW, the construction does not look particularly crude to me, but instead looks pretty standard, and pretty well up to the standards of the day. (Ultra-clean, sanded braces with no glue squeeze-out showing, built like the inside is meant to show: that is a relatively recent thing)
Solid, bent linings for the back and tentellones for the top are standard construction.

[MANDOLINMYSTER]

Bingo, good thing I did not try removing 15th fret and blasting it with steam. Now I can move forward and repair the top and get the neck angle/ geometry back to norm.
Thanks for your wisdom John!