Source: Board of Governors of the Federal Reserve System (US)  

Release: H.4.1 Factors Affecting Reserve Balances  

Units:  Millions of U.S. Dollars, Not Seasonally Adjusted

Frequency:  Weekly, As of Wednesday

Notes:

This item is the initial cost of the land and buildings of the Reserve Banks and branches, less an allowance for depreciation on buildings and including building-related machinery and equipment.