vintage walkie talkie score, info please?!

[stereorob]

macdonald instrements vintage walkie talkies..

scored these at the same place as the old projector, $1.00 each *grin*
they are as close to as pristine condition as they can get! i honestly dont think they were ever even used, pretty chrome and very well made, they have huge 6 foot antennas on them and probubly have one hell of a range! idk if they work yet, they take 8 aa batteries each and im gunna get them next payday. the date of manufacture is jan-1977. cocaine cowboys era! haha. these are somewhat obscure, can anyone tell me about them??