There were so many variations of the Gola. Remember that EACH Gola ever produced (except the first 4-6 that Giovanni Gola made himself to introduce it to the world back in 1956), were made to the specs of the original purchaser.
I've seen some Golas that even had odd colors and 4-rows of Free Bass up top and 47 keys on the right hand of a Gola PA. There were pretty much no restrictions (besides your budget, as Hohner was never afraid to charge top dollar for anything you asked), you tell them what you wanted, paid full up front and waited for it and they delivered it. Basically, if you dreamed it, they could make that Gola for you.
They had base standard models, but no one was ever restricted to purchase a base model unless that was what they wanted, everyone knew that you could make your Gola unique to you.
Knowing this, one's chances of finding a Gola that matched the specs of their basic models is a bit challenging, with the Hohner 414 likely being the biggest exception, quite a few of those were sold because they were the lowest price.
In 1973 these were the starting levels for a Hohner Gola 454:
... after that, anything you could ask for, they would deliver.