Exceptionally large 2-1/8" button in striking black on orange produced for "1952 National Dealers' Sales Conference." Inserted and covering the entire reverse of the button, over top of the W&H back paper, is a slightly yellowed clear sheet of celluloid, which below the button forms a rectangular compartment into which the attendees name card could be inserted. At the very top of the button, just left of center is a tiny 1/8" craze line and slightly raised bump. The rest of the button remains exceptionally clean with almost no surface wear and extremely high gloss. Exc. Only the second we've seen and the first did not have the name cardholder present.