Collins 344B-1 Instrumentation Unit Instruction Book (520-5598-00) by Collins Sale $45.00 | / SKU 1105:R Printed Manual - $45.00 Download - $45.00 Printed Manual Download Size 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. 6th Edition, 1 December 1959