Vintage 1960s Lanz plaid dress with velvet collar

Charming Lanz vintage (ca. 1960s) dress. Black, red, & white plaid shift with black velvet Peter Pan collar & removable red silk tie. 3/4 length sleeves. The type on the size/fabric content disappeared a long time ago, but measurements correspond to a size Medium & the fabric is certainly a cotton blend. Measurements: Bust 18in Waist 20in Hip 20in Length 35in Made in U.S.A Excellent vintage condition- there is a mark on the collar but is only visible when viewed from a particular angle