Genuine IBM Thesis Printwheel. Thesis is a proportional spacing printwheel. It gives more of a typeset appearance. It will fit all IBM Wheelwriters except for the Wheelwriter 3 and Personal Wheelwriter 1. See images for type sample.

Most new, unopened products may be returned within 30 days of delivery. Returns that are not the result of our error are subject to a 10% restocking fee. Reconditioned typewriters also include a 90-day limited warranty covering eligible defects in materials or workmanship under normal use. For an approved warranty claim, Typewriters.com may choose to repair the typewriter, replace it, or issue a refund. Please review our Shipping & Returns Policy and Warranty Policy for complete terms.