Sep 29 Antique Working 1920s SETH THOMAS Business Card Holder Rare Desk Clock POSTED BY admin IN antique Antique Working 1920s SETH THOMAS Business Card Holder Rare Desk Clock. The clock works but I notice it has some delay some adjustment is needed. Measuring 6″ by 3 3/4″the front. Tags : 1920s | antique | business | card | clock | desk | holder | rare | seth | thomas | working