This is one Lot (Qty. 4) of New VISHAY/DALE Crystal Oscillator 25MHz, 5V, TTL. Part Number: XO-54BE25.000MHz in DIP-14 Pin (Full Size) Package. 

Data sheet:

http://www.rfbayinc.com/upload/files/data_sheet/dale_oscillator.pdf

XO-54 Series is on page 24