Corcoran, Carolina, and Chippewa of that era all use the same design jump boot as requested by the united states airforce
for use in Vietnam all the jump boots had to look and perform the same even thow there were three suppliers.
Carolina jump boots are no longer sold they stoped selling them about 3 years ago and even there catalog numbers for the boot was the same as corcoran 955 or 995 in later years .But you can find them all over ebay mine were $65.00 shipped brand new 2 years ago! Just take some light sand paper to the zipper and that black paint comes wright off!!
The pic above are vintage carolina boots and the ones bellow are new out the box stock pic.