Box of telescope accessories and memorabilia

- PZT (Photographic Zenith Tube) mercury level handle. Handwritten on attached label 'PZT Mercury Level Handle'.
- 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.
- Circular metal mount.
- Plaque 'EJERCITO ARGENTINO ESCUELA SUPERIOR TECNICA "GRAL.D.MANUEL N.SAVIO" ' 'EN SU VIAVE FINAL DE ESTUDIOS A ROYAL GREENWICH OBSERVATORY 1990'.The handwritten note found with the plaque states that it was given by Cpt Armando Ricardo Gilardoni of the Geodectic Service Argentinian Army.
- printing plate depicting Herstmonceaux Castle. Handwritten on the back is 'Sky and Telescope Oct 1970' '1825'.
- three pieces of silver foil for objectives.
- circular protractor and scale. On the scale is 'Casella, London, Made in England'. Handwritten on the envelope 'Circular protractor & scale for transferring postitiions into drawing.
- Rectangular metal bar with notches at either end. Handwritten on attached label 'Key for moving inner ventilator (control room air conditioning in ceiling)'.
- Rectangular metal block with 1.430 engraved on it.
- Lens.
- Cruiserfix Solar Navigator.