In this case not much. It is a 1055-81 Bureau Precancel with a 20c CV. This is the minimum price.
Bureau Precancels are valued from 20c to $4000. with most under $1. However there are about 10 worth more than $1000. There are ~9400 different.
Check out my Bureau Precancel store if you are interested:***No Drive By Links***https://www.stampcommunity.org/rules.asp#rulesid8