Here are the details straight from A Muse:
End of Summer Sale from A Muse!
We all love a good sale, and we have a great promotion for you.
As a special offer to our customers, we are offering 25% off all of our Large Alpha Clear Stamp Sets! Please see a list of the part numbers below.
Regular retail $29.99 ~
These sets are fabulous for both card making and scrapbooking! All of these sets can be viewed on our website. Select “Products” and then “Expressions”, and they can be found at the bottom of this page.
Place your order on or before September 30, 2007 to receive this special pricing. Offer limited to stock on hand.