The Julie Andrews Maria guitar was a folk model. It had a slotted peg head, wide fingerboard with no position markers but it had a pin bridge. It had nylon strings in the movie, but was supposed to be able to take "compound" or "folk" strings, now called silk & steel.
They were supposed to remove the "Goya" stencil from the headstock, but neglected to do so, so Maria was playing a guitar made for the North American market.