cassettes

Any body got some lying around in their lofts or at the back of their cupboards? I've become a bit of a collector of (preferably) TDK-MAXELL-THAT'S-SONY etc either wrapped/sealed NOS or used/good condition (blanks btw-not commercial recordings) and just wondered whats out there gathering...

I want to replace the radio CD thing I have in my 1990 2.5-16 with something from the period. It's more about originality than sound. I have three old Becker radio cassettes & wondered if anyone knew anything about them. I know the Mexico Electronic was standard issue in 560s & available at...