Oooh almost perfect but for the discrepancy in that the guitar he plays on stage at Enchantment Under the Sea is a Gibson ES 345 and wasn't released until 1958 - 3 years later than his jaunt back in time.
Let's face it, the perfect script should have accommodated this, he did have a time machine after all.
Nice catch. I like that attention to detail.
Not a script problem that though, the guitar type wouldn’t have been in the screenplay, that’s a production design problem.