Tisch, Congratulations on your new machine. Your English is great. I wish I could speak Dutch. I'd like to visit Holland or Italy and buy a 431 while I'm there. In case you don't have the manual already, here are two sources. One might be better quality than the other:
http://www.singerco.com/uploads/download/1306_431.pdf
http://www.ismacs.net/singer_sewing_machine_company/manuals/431.pdf