I was doing some research on some of the less-known Israeli handguns, and ran across a picture of the Sirkis SQP. This is from a scan of the “Guns Handgun Annual 1985” magazine.
As you can see, the SQP has a Walther PPK-esque profile, with the addition of a squeeze cocker ala the HK P7. It is certainly a somewhat prettier gun than the Sirkis SD-9, and might have made a decent carry piece if it wasn’t too heavy (which was the SD-9’s ultimate downfall). Unfortunately, I don’t have a copy of the magazine to see what they said about it.
Nehemiah Sirkis is still alive (he designed the IWI Dan rifle), so it might be time to reach out to him and get some more details about some of his guns that we never quite saw.