You can look at what attributes your stock on hand has. This is assuming your stock has been designated Attributes on purchase, and that they are entered in the system. Simply navigate to the appropriate stock record and go to the Stock On Hand tab at the bottom of the form:
If you tick the Show attributes box (top right) and scroll to the right, you will see that Jim2 has added a few extra columns to your lines:
You can also view attributes from the Buying and Stock On Hand tabs in the footer.
Further information: