What type of identification my Vespa? 1964 125cc engine vssx1t

Hello, I am Ricardo live in Brazil and I have a Vespa 1964. I have dificuldadesuma them to compare the parts of the SIP site to make the purchase, because there are differences of Brazilian models and the site. The numeraões models are not the same for Wasps same year here, bought parts for a PX 200E and one of them came wrong. If anyone knows how I can improve the shopping and help me, thank you.