This Collins 32S-1 Trasmitter Original Manual 520 5796 00 15 Sept. 1959, is in very good condition. The Cover has just a couple small smudges, the fold out schematic diagram, and binding edge are in nice shape. I will provide a Plactic sleeve to protect the cover and binding.Why buy a copy when you can own an original for about the same cost? Here are the serial numbers for each transmitter by fiscal year:32S-1/21958 Serial 1 to 8511959 Serial 852 to 19521960 Serial 1953 to 31431961 Serial 10,000 to 10,6101962 Serial 11,000 to 11,469 and 11,700 to 11,93732S-31963 Serial 10,000 to 10,999 and 11,400 to 11,7401964 Serial 11,741 to 12,6481965 Serial 12,649 to 13,3681966 Serial 13,369 to 13,9631967 Serial 100,000 to 100,5161968 Serial 100,517 to 100,9711969 Serial 101,000 to 101,4071970 Serial 101,408 to 101,7681971 Serial 102,000 to 102,3131972 Serial 102,314 to 102,6111973 Serial 30,000 to 30,3841974 Serial 30,385 to 30,76832S-3A1974 Serial 30,740 to 30,7701975 Serial MCN4000 to MCN42001976 Serial MCN4201 to MCN4400This and every Manual I sell, comes with a money back satisfaction guarantee. I do carefully check each used manual but due to the high volume of used manuals I have, It is difficult to detect a missing page or some defects.If you are not happy with your used manual, please contact me and I will take care of it to your satisfaction including and full refund for the purchase price and shipping costs.