Originally Posted by bobski
then i'll bet the vents were for it to cool while it got loaded in the van.
I've been playing for 48 years and I've never seen an amp case like that. It is an interesting theory about the cooling, but my concern then would be humidity. I won't tell you it isn't an amp case, and I can't tell what else it might be.
My first thought was a case for an IBM field tech's test rig from way way back but from what I am seeing the test rig would need a bigger case than what you have.