Mazda squirrel cage lamp, etch.

I picked this up today from an antique fair of all places. It was on a table full of other bits and pieces, in a old but very good condition Royal Ediswan box. I looked into it to see this lamp, and thought I'd best get it to compliment the older Osram lamp I'd picked up prior to seeing this.

This is obviously a much later lamp, having no pip, and a smaller brass lamp cap. Interestingly its also only 210v, so yet another lamp I'll be using on a variac rather than just putting it straight onto mains supply.