DIY Re-lacquering brass lenses

The reason I am asking is that I have experience spraying nitrocellulose lacquer for vintage guitars, but I have this little guy that I need to deal with. So maybe I need to learn a new technique. I guess I would need a source of that type of lacquer. I know where to get shellac chip.

ic-racer,
I've never re-laquered a lens but I have made brass lensboards for my Wista all I laquered them with was cellulose spray laquer from the local car parts suppliers.
It's lasted a few years now, but the boards don't get overused.
Pete.