After you've studied the source, take some time to create and test hypotheses about it. You might ask yourself:
• Where did this came from?
• Why did someone make this?
• What was happening when this was made?
• Who was the audience for this item?
• What tool was used to create this?
• Why is this item so important?
• If somebody made this today, what would be different?
• What can I learn from examining this?