ANY LEAD IS A GOOD LEAD ! Thank you sirProbably not much help, but:
According to my Hollander, the '54-56 56R, 76R, 76RX Riv. Cpe use vent glass 1022 which is shared with '54-56 Cadillac 62 Cpes. exc. Conv.
These may be them on ebay: Buick vent windows
There was one more for 475.00, but I couldn't make it come up on the search.
http://www.ctcautoranch.com/Parts Cars/Buick/1958 and Back/1958 and Back/1956 Buick Century 1/1956 Buick Century Parts Car 1.html
Bob , its an old school technique , first you do a dry stretch of the lace on your roof to find out how well it will conform to the shape , this one conforms preety well , then obviously you respray the roof with a dark or light color . mine will be a bright silver for now. (that may change)what do you do with the cloth? pre-paint it and let it dry so when you're spraying the roof it doesn't just soak through?
I can do that , I am planning on starting the body very soon , it seems like most of the mechanical issues are coming to an end .well, that sounds damn cool.
could i browbeat you into composing a How-It-Was-Done article documenting the entire procedure? you know, with pics of your work project and all.
that would be a nice addition to the reference section.