NOS (New Old Stock) This refers to an original product that is from the past but never used and most likely to have never been handled as in this case!

Brief Insight into Solidex Milk Savers
The Solidex Glass (Pyrex) Milk Saver is a rather handy device that is placed on the bottom of a saucepan to prevent boiling over. As boiling commences the disc gives a vibrating sound. For continous boiling use low heat. May be used for milk, cocoa, any vegetables, macaroni and other pastas or liquids. Transparent (made from pyrex style or pyrex glass later versions), hygenic and easy to clean it is a boon to the busy housewife and is indispensible in the kitchen. The Solidex Milk Saver was made in France and distributed by Murrell Ltd of London, England. We have so far found two different types of boxes, both having the same fronts but different addresses for the distributors

We have also learnt that there was 4 different tradmark names moulded as shown below -

We have personally classified the boxes and savers as follows -
| TYPE AB |
Netherwood St. |
1950s |
| TYPE BB |
Crewys Road |
1970s |
|
|
|
| TYPE 1S |
Solidex Reg TM |
1950s |
| TYPE 2S |
Sovirel France St |
1960s |
| TYPE 3S |
Sovirel France C |
1970s |
| TYPE 4S |
Pyrex France |
1970s |
|
|
|
The dates have been ascertained from our brief research into this type of Milk/Pan Saver but if you know any better please let us know because we always embrace learning here at retonthenet

Description
Only 1 Left (out of 24) in Stock at Present! Get them Now - Hard to Find NOS ones
Item - Vtg NOS (New Old Stock) Solidex Milk Saver BB/4S in Original Box as New
Maker - Pyrex France
Circa - 1970s
Construction - Pyrex Heat Proof Glass
Country of Origin - France
Dimensions - 3.25" in diameter
Weight - 110 gram in box
Condition - Excellent Unused Condition.
Other Interesting Points - I was lucky enough to purchase a full shop display box of 24, this is one of the Milk Savers from this box and has never been used and is as New; ideal for gift or present!
(Please see all Photos).
POSTAGE & PACKAGING
There is a charge of £1.50 for Postage and Packaging to all U.K. Residents (1st Class Mail Delivery, others P.O.A), we will also ship Worldwide please check table table below. If you have any questions please feel free to contact!
Postage Rates for this Item
| Special Next Day Delivery |
£5.00 |
| 1st Class Recorded Mail |
£2.50 |
| 1st Class Mail |
£1.50 |
| Europe |
£2.00 |
| Rest of the World |
£3.00 |