|Note_en=Advertising for the [[Parker 51|51]] model priced at $12.50 and $15.00 in ''India Black'', ''Cordovan Brown'', ''Blue Cedar'', ''Dove Gray'' colors. Mention the ''"[[Blue diamond]]"'' life warranty. Brief mention for [[Vacumatic]] models at $5 and $8.75. | |Note_en=Advertising for the [[Parker 51|51]] model priced at $12.50 and $15.00 in ''India Black'', ''Cordovan Brown'', ''Blue Cedar'', ''Dove Gray'' colors. Mention the ''"[[Blue diamond]]"'' life warranty. Brief mention for [[Vacumatic]] models at $5 and $8.75. |