nothing very clever, I'm afraid - quite basic really - with a question like this I simply hit those books that contain images of pressed pieces - and Hajdamach is one of those I would automatically refer to. After a while, you tend to know which volumes will provide (or not) some worthwhile data on certain glass types - and for something like this I'd go to Thompson (plus supplement), Slack, Lattimore, Hajdamach, the Stewarts although not necessarily in that order. From what I could see, it is only Hadjamach that provides an image of what appears to be this one. I quite like this piece, it's unusual, and rather quircky. Probably difficult m, but can you detect any wear in the usual 'high spot' places?