Vintage Art Deco machine age, chunky silver tone and green wood bead necklace - Jakob Bengel?

Vintage Art Deco machine age silver tone and green wood bead necklace. There is lovely intricate chain work and each bead is enclosed in large elaborate silver tone bead guards. This is a gorgeous piece. A beautifully designed machine age Bauhaus style necklace which originates from the 1930s. It has features that are seen in Jakob Bengel's Art Deco jewellery, but I cannot find another exactly like it and do not have to provenance for this. However the last picture shows a Bengel book piece using the same interlinked chain style.

I particularly love the the looped metal work and the intricacy of how it fits together but hangs always perfectly. This would be classic work for a producer like the Bengel factory during that period, often producing pieces featuring wood and glass alongside the well know galalith pieces produced. The overall vintage condition is good - the only issue being wear to the silver tone, which actually gives it a very attractive antique look, and slight fading of the green colour, neither of which detracts from the piece in my opinion.