[MassHistPres] Cold War bomb shelter

[Edinborough Press]

 >>How fixed is the 50 year rule?<<

It's more of a guideline but you must show a high level of  
significance. That's a good principle as it allows for the  
perspective of time. But, for example, there are several Nike missile  
sites in Massachusetts that were placed on the NR before the fifty- 
year mark.

Daniel Hoisington
preservation at edinborough.com