quick-reference chart; table
A concise chart or table for looking up information quickly, such as a fare table or conversion chart.
駅に運賃の早見表が貼ってある。
A fare chart is posted at the station.
一覧表 is a summary list meant to give an overview, whereas 早見 is built for quickly finding a specific value.
Compound of 早 (はや, 'fast') and 見 (み, 'seeing'), literally 'quick look'. The exact historical derivation is uncertain, but the meaning is transparent.