I SHIP WORLDWIDE!Vintage Slingerland "RADIO KING" Internal/External Double-Tone Control Bass Drum Muffler No. 933. In nice original condition. These were also mounted in other vintage drums by dealers. Those 3 holes in your bass drum THAT MAY BE BAFFLING YOU... - this may be the MISSING PART! Found an adjustment bolt/nut that works but is NOT original. Fits ANY brand kick drum! Hard to find. No reserve. Please check photos and ask questions B-4 bidding as sale is final. Bid to buy W/confidence-I've been an ebay member for over 13 years w/100% positive feedback. Shipping is $9.99 to the lower 48 states. I ship worldwide. International, Alaskan, Puerto Rican & Hawaiian bidders ship cost'll be determined AFTER Auction ends. Paypal payment's due within two, (2) days of auction end. "Buy It now" is due immediately. PAYMENT & PICKUP IN PERSON'S ACCEPTED AS WELL-LOCATED 44509.