Look in any design book featuring bakelite industrial design and this exquisite object is sure to make an appearance. It's a 1950s Davenset battery tester with a lovely swoopy bakelite body.
You can use this as a decorative item with great design, a battery tester or, as my nephew Space Ranger Yates is doing in attacking his sister Ju-Ju with a Kalamoraine Disruptor pistol - which just happens to look like a Davenset battery tester - on second thoughts, scrub that last use as the elf and safety , lefty wets will come after you!!!!!!
This example is in smashing unspoilt condition, needing only a polish before placing on display.