I picked up this set of postcards last year. There are 14 pics from 1958. They are:
4 Queens
Golden Nugget
The Mint; Fremont; Lucky Casino; California Club; Horseshoe
Sal Sagev Hotel; Golden Gate Casino
Golden Nugget; Lucky Casino; Horseshoe
Pioneer; California Club; Lucky Casino
Fremone
The Mint
Showboat

Any idea of what they may be worth.
Thanks