OK--all you have to do to 55 birds with no provision for sun visors is buy '56 - '57 sun visor windshield "mountings" . the windshields are all the same ('55 to '57) . only difference is that sun visor holes and stuff are on the windshield trim on 56 and 57 birds. when i bought my 55 in 1971, it had both sun visors on it. someone did just that to it. and for years i thought all 3 years came with sun visors. i was wrong, of course. now i know only 55s did not have sun visors..and the sun visors themselves were not on my bird-just the mountings-when i went to buy them, they were (1974) around $200 apiece, too much for me at the time..i finally bought a pair in around 1999 and i had a black interior and only could get white ones, so i had to go to the local trim shop and have 'custom' 'covers' made foe them in black.