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Question about moncrieff factory or scottish paperweight

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love2glow59:
The label is old and I happened to find only after removing an antique dealers shop label. I believe that it pulled the paper part off, leaving the impression that is only seen with the light hitting at the right angle.  Could this be a shipping label?  It does seem that when it was sold to me, 15+ years ago, that there was a label.  They called it Murano. This is the large one 3 1/2" x 3 1/2" and weighing about 3 1/2 lbs.  I want to list it with this correct identity, but should I remove this label? It does not remove easily. 

cfosterk:
The label looks spurious and unconnected with the weight itself.

It's 100% a strathearn sea urchin.......and it's size is unusual....

love2glow59:
Hello, Thank you for your time and input! Here are two pictures of Long wave UV of the same paperweight. Would this be a 1950's because of the bright green glow?  I know, with  Murano glass, it can be dated that way. How about with this Strathearn sea urchin piece?

KevinH:

--- Quote ---Would this be a 1950's because of the bright green glow?  I know, with  Murano glass, it can be dated that way.
--- End quote ---
The Strathearn P3 Sea Urchin cannot be 1950s because Strathearn Glass was not formed until 1964. And these weights have so far only been identified, through catalogue information, as being possibly "pre-1978". Richard More gives a dating of, "Circa for the time being 1965 to 1979" - which seems very reasonale to me, given the lack of more precise evidence.

Regarding UV reactions, lots of glass from lots of periods will glow very bright green under longwave UV. I do not believe it is possible to be sure that a bright green reaction can be used to identify a particular period - of any maker. For example, I have found with weights by Paul Ysart that by using both longwave and shortwave, the work from his three periods (pre-1963, 1963 to 1969/70, and 1970 to 1979) can be separated. But I have yet to agree with any author or collector that his pre- and post-WWII work can be identified by the former being a very bright green. I feel the same about longwave reactions for such as Murano.

Is there any real evidence that 1950s Murano weights glow a brighter green than those from other periods (before or after)? Anybody actually made an analysis of this using many Murano weights from many periods and many makers?

Here's the UV reactions of my (Green) Sea Urchin:
Longwave (pretty much the same green)
Shortwave (typical bright blue of Scottish [and other] weights using a lead-based mix)
Photos taken with UV lamp to one side of weight at distance of 5cm (2 inch). Ambient incandescent room lighting. Camera tripod-mounted and set to auto functioning, no flash.

By the way, in answer to whether the (presumed) non-Strathearn label should be removed, I'd personally leave it on but make sure that it is described as being an unknown label. It may be that later, somebody may recognise the parts that can be seen, or the general shape, and then a better id of whose label it is may come to light, which could be useful for future reference.

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