Late War "M44" frog for K98 Bayonets. Made with German pattern webbing (not British), hand-stitched with linen thread. These are considered by collectors to be an economy model made to save leather. Originals cary widely in the color of both the leather (brown or black) and the webbing (tan, green, gray, or blue-gray) as well as the rivet types.
This is a late War item, not "tropical". This is would have been issued to all German troops- just damned difficult to see in an original photo.
Made with US materials, assembled overseas.