https://www.huntington.org/collections/lib-p15150coll2-173?ref=reckoningscience.org
Edwin Powell Hubble seated at the 100 inch Hooker Telescope, Mount Wilson Observatory | Collections...
Edwin Powell Hubble seated at the 100 inch Hooker telescope. Note in the hand of Grace (Burke) Hubble: "EPH at 100 inch @1924".
100 inch hooker telescopeedwin powell hubble