Firestone Airmount W01? Single Convoluted Air Spring Bag it is dusty from sitting on the shelf the place where these came from had some of their own trucks and that is what I assume they were for or maybe for some other piece of equipment.
The part number is unreadable
 
 
 New parts from a woodworking factory that closed and had spare parts for their equipment.

 

 [Please Look at all the pictures they are part of the description] 

              

                                                                                        [B1-F1-R6-S2-4]