Most of the pieces are studies in pencil from the 1920s-1940s; included is a watercolor landscape showing Jerusalem, 1978 (9 x 11.5 in.). Kortheuer is a listed romantic artist.

The Lifelong Collection of Keith and Caroline Gray, Charlotte, NC. Keith and Caroline Gray were passionate about antiques, art, and history. Together they attended antique shows and auctions for decades – assembling a collection particularly strong on American coin silver, Asian art, historical documents, early images, and English ceramics. Both were longtime supporters of the Mint Museum in Charlotte, with Caroline serving in multiple capacities from docent to a member of the acquisitions board and trustee. Caroline translated her love of material culture into a successful career, becoming a certified property appraiser in Charlotte.

Good estate condition.