Cessna Multi-Engine Service Letter Set 1968-1972 from $24.75 Qty. 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. Condition: UsedCondition Description: contains service letters from early 1968 to late 1972 - in binderSee condition in pictures. Qty available: 1 Tweet