When we find a company that makes stained glass, we order their samples and build a rack so we can study them in natural light. We now have 35 racks with hundreds of glass samples. Combining the different characters of the glass as well as their colors for each project individually is an art unto itself.
These samples are useful in communicating with our clients, but to select the final glass we group our projects together and visit the vendors to hand select. Ordering based solely on the samples is very risky.