If you live in the U.S., there are antique battery companies out there that make reproduction batteries for many cars of the 50's and 60's, including all U.S. auto manufactures and some European. Unfortunately, MB has not given these companies the permission to use the MB name. Same with Bosch and Varta. They do however make Lucas batteries in the correct size and appearance. These are sealed batteries that have basically the same dimensions as the original batteries found in the 113's. They look identical to the old tar top batteries, series 24.