DAVID OSCARSON PROTOTYPE STERLING CIGAR TUBE: One of only 4 prototypes produced by David Oscarson nearly 10 years ago for the artist Maria Saldarriaga. Constructed of sterling and blue ''soft'' enamel. Unmarked as to maker but we have confirmed with David Oscarson that he did indeed create these. Monogrammed R, 7 5/8'' l. x 7/8'' dia. Please see accompanying lots for the other 3 prototypes.