Rare Antique Mustache Comb Case Horshoe Diamond Ruby 18k Yellow Gold. This is a rare stunning solid gold 18k yellow gold mastache holder with a comb. The case has a scale like design with a horseshoe. The horseshoe has 5 old cut rubies and 4 rose cut diamonds. The case test for 18k it is in excellent condition the comb has a few missing. Weight 11.8 grams, Case measures 3" long by 3/4" wide.