An excellent lens. Has a 210mm image circle at f22, which is enough coverage for 4×5. Remarkable condition. Looks to have been hardly used and very well cared for. Full lens specs are here: https://www.schneideroptics.com/info/vintage_lens_data/large_format_lenses/symmar-s/data/1,5,6-150mm.htmlHas a Copal #0 shutter, so requires a lens board with a 34.6mm hole.
Front and rear caps.