- Series615 - Records of the Commonwealth Solar Observatory (Mt Stromlo) and Kurt Gottlieb
- 641 more...
- Item642 - Blueprint - Harvard College Observatory 61 inch telescope mirror cell assembly
- Item643 - Blueprint - McDonald Observatory 82 inch reflector edge and back support assemblies
- Item644 - Blueprint - 36 inch cassegrain telescope cross axis
- Item645 - Blueprint - proposed 40 inch telescope for Mt Stromlo
- Item646 - Blueprint - polarising photometer general assembly
- Item647 - Blueprint - 26 inch telescope optical arrangement
- Item648 - Blueprint - installing thread indicator for 9 inch lathe
- Item649 - Blueprint - spectrograph supporting shaft
- Item650 - Blueprint - preliminary design for nebular spectrograph
- 56 more...
