Gillette Black Handle Adjustable

Question.... What years did Gillette make the short black handle adjustable? Also, what years did Gillette make both the short and long black handle adjustable?

Thanks,
Jim

 

http://www.razorarchive.com/gillette-date-codes

'69 ish

I have owned a "Black Beauty" with a 1980 datecode.

 

I have a '70 short handle and a '75 long handle

 

On my list of must haves.

 

I've only seen the black short handle with an O code (1969). Was the overlap only for one year?

 

I have the '69 long handle but would prefer a short version.