Possible Clues:

• Type of script with rounded letters, from which modern capitals were derived
• Open up, as you might say, an old letter
• Old letter has bearing on intelligence agency in college
• Old letter withdrawn, so ignored
• Old manuscript letter
• Writing style of old Latin manuscripts
• Lu, I can make a type of script
• Old Greek handwriting style
• Nail CU to a form of old Greek and Latin writing