Early M31 messkit marked OLHM 40 / OHW 38

Nice original early M31 messkit in good used condition. The messkit is a mismatch but has been found as is. The bottom is nicely marked OLHM 40 which indicates production by O.L.Härtel, Aluminium-und-Metalwarenfabrik K.G., Markersbach in 1940 , The lid is marked OHW 38 which indicates production by Otto Honsel-Werke, Aluminiumwerk, Werdohl in 1938. The bottom part marked OHLM is from a rather hard to encounter manufacturer. Nice used early example!