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Puster Bill · 08-23-09, 01:27 PM

OK, I'm going to ask for some help from anyone near Pensacola Florida.

The US Navy used a strip cipher during WWII called the "CSP-642". I was a lower-level cipher similar to the ones I posted above, except that there were 30 strips, and they used 25 to 30 of them at a time, depending on the particular key for that day.

The Japanese captured examples of it at Wake and the Aleutians, but even though they devoted considerable effort in breaking it, they only had spotty success. They recognized that it was used by US subs, though, by the indicators used: BIMEC and FEMYH.

I have been unable to find any images of it online.

There is an example of this cipher at the Naval Security Group Command at Corry Station. It's called the "Wenger Command Display". It's open to the public, the information necessary to visit personally is here:
http://ehistory.osu.edu/wwii/interac...nger/index.cfm

If anyone can get me some good, clear pictures of it, I can make up the files necessary and then upload them.

I *COULD* make a notional example with my own mixed alphabet strips, but I'd rather it be based on the real thing if possible.

Thanks in advance.

08-23-09, 01:27 PM	#19
Puster Bill Grey Wolf Join Date: May 2006 Location: BA8758, or FN33eh for my fellow hams. Posts: 833 Downloads: 0 Uploads: 0	OK, I'm going to ask for some help from anyone near Pensacola Florida. The US Navy used a strip cipher during WWII called the "CSP-642". I was a lower-level cipher similar to the ones I posted above, except that there were 30 strips, and they used 25 to 30 of them at a time, depending on the particular key for that day. The Japanese captured examples of it at Wake and the Aleutians, but even though they devoted considerable effort in breaking it, they only had spotty success. They recognized that it was used by US subs, though, by the indicators used: BIMEC and FEMYH. I have been unable to find any images of it online. There is an example of this cipher at the Naval Security Group Command at Corry Station. It's called the "Wenger Command Display". It's open to the public, the information necessary to visit personally is here: http://ehistory.osu.edu/wwii/interac...nger/index.cfm If anyone can get me some good, clear pictures of it, I can make up the files necessary and then upload them. I COULD make a notional example with my own mixed alphabet strips, but I'd rather it be based on the real thing if possible. Thanks in advance. __________________ The U-Boat Commander of Love