https://reverb.com/item/17293217-alembic-series-i-1978-32-scale

no cracks, normal? lamination pull on back of headstock, see pic

Yeah...that should be rebiult at Alembic.


I see someone had different thoughts   

My guess is someone already glued and clamped the broken scarf joint up, as it's clearly taken a shot at some point. I'd probably have worded the ad differently, but by most accounts I've ever read, LowEnd Bass Shop is known to be a pretty reputable dealer.

Here's another one on Reverb  a short-scale Series I (https://reverb.com/item/11877486-alembic-series-i-ss) that is described as having "headstock laminate cracks."  The second and third photos suggest something a bit more catastrophic.  Except for these "lamination cracks" the bass appears to be in fairly good condition and reasonably priced.

[edited to fix formatting]

Looks like a crack to me.