F. Sengpiel Patent Padlock Burg-Luling manu.

I have included these three padlocks under the heading "F.Sengpiel Burg-Luling manu." because very similar locks appear in the 1902 Burg Catalog and they are called "Sengpiel".  Similarities include spring-loaded oak leaf design dustcover, general shape and size. Look-a-Like features, narrower arch on shackle, enclosed on the shackle for locking bolt, no size body differences. We have recently learned, due to research conducted by Adrian Weber, Germany Security Specialist, that the "F. Sengpiel" Padlock was originally produced by Luling Company (Volmarstein, Germany) and later by Burg Company (same family ownership as Luling) and that the inclusion of "F. Sengpiel Patent" stamping (on the dustcover)  may have been omitted by Burg in order to not pay royalties.  See my exhibit "F. Sengpiel Patent Padlocks Summary" for Sengpiel padlocks.