Old Heath Software - New In Box - Query

[Dennis Vernacchia]

I have come acquired a Heathkit Box of an RTTY Software program, 
unopened and
I do not want to open the box and ruin it's value to collectors

The only number on the box are there

SF-9006
00108

In the estate sale there was a unbuilt kit with an 8 inch disk drive 
that a ham friend of mine bought

The box size is about 12" X 12" X 3" thick

I expect it is full of Floppy disks and a manual or instruction sheet

I expect there may be 8 inch floppies in it as if they were 5 inch, why 
would teh box be so big ???

Any info on contents and value appreciated

Thanks

73, Dennis N6KI