The Fulton sunvisors do have a model number but the number may not be stamped on the sunvisor. I bought an NOS Fulton sunvisor, for my 1954 3100 pick up, that was still in the original box - the cardboard so old you could easily crumple it in your hand. The Fulton label on the box was for Model 1000. Model 1000 fits 54 and 55 first Chevy trucks and 53 and 54 Chevy cars - all one piece windshields. I did not see the model number on the visor. The visor is adjustable because the center section, hidden from view when assembled, has several rows of holes for different widths. Chevrolet did offer a GM factory sunvisor in 1954 that is not adjustable and looks more like a 1955 Chevy truck sunvisor - not adjustable. The Chevrolet sunvisors are rare and can be seen in one of the original factory brochures for optional equipment.
Your 52 burb would be a two piece windshield requiring a center support from the visor to the windshield. I am sure Fulton has a model number for the visor but sorry I do not know the number for 47 -53. Follow sunvisors for sale on ebay for a while to learn model information and possibly find a visor to buy. Start your search with 1952 Chevy sunvisor or Fulton sunvisor and go from there. Good luck.