Click to expand Tap to zoom Bell Helicopter R-4B & HNS-1 1944 Parts Catalog by Bell Helicopter old Sale $104.00 | / SKU 7906:R 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. Helicopter Revised April 1945