Authentic vintage 1974 Paramount ?The Fonz / Sit On It? T-shirt ? an early licensed Happy Days piece featuring the iconic catchphrase. Marked Boys L (14/16). In rare original condition, with some dark red stains as shown. Condition Good vintage condition ? fabric is soft and wearable, but shows staining (see photos). Sold as found. Provenance Note Happy Days premiered in 1974, and licensed Fonz merchandise quickly followed. Early shirts with Paramount markings are highly collectible as they predate the later 70s/80s flood of TV memorabilia. Authentic ?Sit On It? shirts are sought after by TV nostalgia and 70s pop culture collectors, especially in children?s and youth sizes (survivors are rare). Style Aesthetics ? 70s TV nostalgia ? pop culture collectible ? sustainable vintage Styling Tips Collector display piece for 70s pop culture memorabilia. Could be worn layered for retro styling if size allows. Excellent candidate for framing as TV history. Measurements (laid flat) Chest: 13" (26"+ stretch) Length (shoulder to hem): 21" Approx. Modern Size: Boys L (14/16). Equivalent to a modern XS adult or slim fit small. Fabric / Materials: Tag faint, appears to be cotton/poly blend. Feels like 100% cotton. Sustainability Note Sustainably vintage ? 1970s licensed apparel, not fast fashion. Costuming CTA Costuming a film, theater, or creative project? Contact Miss Kitty ? we have extensive vintage inventory not yet listed and can offer excellent bulk/volume discounts for productions. Thanks for Shopping at The Cats Pajamas! PLEASE ASK Miss Kitty any QUESTIONS BEFORE PURCHASING! Seriously, fire away! We love to chat and want to make sure you're doing a happy dance when your goodies arrive! RETURN POLICY: Our treasures are sold as final sale (no take-backsies!), but your satisfaction is our jam! We get it ? photos can only tell half the story, so don't be shy about those questions! CONDITION: All our finds are sold as-is, straight from a clean, smoke-free zone. Unless we've called out a specific "quirk," these beauties are flawless and ready to shine! SHIPPING: We're on it! Standard 2-day handling, or if you're in a hurry, zip, zap, zoom with 1-day express via UPS or FedEx! INTERNATIONAL SHIPPING: Hey globetrotters! Just a friendly heads-up: you're on the hook for any import taxes or customs fees. We play by the rules and give customs the full scoop, so no surprises there!