In the 1930s, Nationals and Dobro-branded guitars often featured a “frosted duco” finish, the result of applying a unique lacquer would seemingly crystalize on the instrument. The guitar finish equivalent of tie-dye, no two of these frosted duco finishes looks alike, but nearly every surviving example is gorgeous. Around 1937, National stopped using the finish altogether and it was quickly relegated to guitar geek history. Seattle-area guitar collector Rik Besser has spent years perfecting his own version of "frosted duco" and is now the go-to guy for these finishes. On this week's podcast, he explains his process and tells us about some of the new projects he's currently working on.