Is there a reliable website or book where you can find info and pricing on antique bicycles?
To my knowledge, there is no book defining vintage bicycle values. However...
This is a pretty good place to get an idea of value - sometimes. Sometimes? It is difficult to nail a value. Value is based on the bicycle, its condition, its size, its location and the seller's marketing skills. So, to help us offer you an appraisal of value, you will need to offer more information pertaining to those criteria mentioned. Once you have ten posts, then you can share pictures with us. Pictures are a tremendous help when appraising a vintage bicycle.
Hope that is helpful and welcome to Bike Forums.