Hi guys
This really is a gorgeous Springy. April 1981 build, 1963 replica with an ash body instead of alder. E pickups and 7 digit number. Nitro lacquer over a Metallic Red paint and nicely aged and faded.
It should have a 'C' neck, not a 'V' - they were for 54-57 replicas with maple necks or some custom models (eg TE-120 R).
With the side markers, their positioning is correct. The 50/50 you talked about was used on "slab" boards ['59-62] but this is a veneer board. I don't think it's Brazilian, probably A-grade Indian that has darkened and matured over the last 32 years.
I believe this guitar would sound awesome, both acoustically and plugged in.
Congratulations on a superb vintage timepiece.
Peter Mac