Pyrex powder sample
        
        Glass bottle containing white powder. Typed on label 'Pyrex powder sample of the first cut from the Isaac Newton 98" mirror, Grubb, Parsons, June 1950'.
              
      
    Object Details
| ID: | ZBA1708.2 | 
|---|---|
| Type: | Pyrex powder sample | 
| Display location: | Not on display | 
| Credit: | Misc. National Maritime Museum, Greenwich, London, RGO Collection | 
| Measurements: | Diameter: 33 mm;Overall: 74 mm | 
| Parts: | Box of telescope accessories and memorabilia (Miscellaneous) 
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