I vaguely remember my grandfather and dad using one similar to this, no handle. They used it in bathrooms in the 50's. It was a simpler design. Mixed the wet concrete with lime to build the walls for ceramic install. But I don't know if that is what it was actually meant for. Anyway, thanks for...
This adjustable height stand is, I believe, from the thirties or forties. Three heights. I don't know what the lever would be used for. Please see pic. Thanks!