Complex sentence: The Ruth Crisp telescope, a research-grade 41-cm (16-inch) reflecting telescope made by Boller and Chivens of the USA, came to the observatory in the 1960s thanks to a donation by Ruth Crisp.
Split into simpler sentences: The Ruth Crisp Telescope is a research grade 41 cm (16 inch) reflecting telescope made by Boller and Chivens of the USA. It was obtained by the observatory in the 1960s thanks to a donation by Ruth Crisp.