Hi Guys, just barely bought these about 40 mins on craigs list got the 5 of them for 20 dollars. Pretty Happy i know I seen some of them on ebay for a lot more. So my question ust curious if anyone else knows when they were made. Is there a different series I am guessing ? These are made by Telco, I know the box says 1986-1990. Some on ebay have a flat base mine have a round base so I am guessing 1990 ? Just curious I know NOTHING bout these except I think I got a good deal lol.