Maintenance of 155 mm. gun - Ordnance Training Center

Front:
No. 638 Maintenance of 155mm. Gun-Ordnance Training Center-Aberdeen Proving Ground, Md.

Back:
From: W. R. THOMSON & Co. [PHOTO w TR FINISH] PUBLISHERS, RICHMOND, VA. Reze 25 NWID FOR VICTORY BUY STATBS WAR BONDS STAMPS