![Marks and marking of weights and measures of the British Isles / Carl Ricketts ; with John Douglas - Rare Books in The Metropolitan Museum of Art Libraries - Digital Collections from Marks and marking of weights and measures of the British Isles / Carl Ricketts ; with John Douglas - Rare Books in The Metropolitan Museum of Art Libraries - Digital Collections from](https://libmma.contentdm.oclc.org/iiif/2/p16028coll4:21818/full/730,/0/default.jpg)
Marks and marking of weights and measures of the British Isles / Carl Ricketts ; with John Douglas - Rare Books in The Metropolitan Museum of Art Libraries - Digital Collections from
![E sign (e-mark) for estimated weights and volumes. Vector symbols for packaging and labels used in the European Union for prepacked foods. Expiration date for cosmetics and example barcodes in black. Stock E sign (e-mark) for estimated weights and volumes. Vector symbols for packaging and labels used in the European Union for prepacked foods. Expiration date for cosmetics and example barcodes in black. Stock](https://as1.ftcdn.net/v2/jpg/02/74/66/86/1000_F_274668617_9XPpOQxilsYKUbsm9ilE5P4H5Is7zvSz.jpg)
E sign (e-mark) for estimated weights and volumes. Vector symbols for packaging and labels used in the European Union for prepacked foods. Expiration date for cosmetics and example barcodes in black. Stock
![Anyone recognize these markings? I've got this brass weight and I don't recognize the markings (canadian so this could be imperial or metric). As you can imagine googling “sqrt ED” or “ED Anyone recognize these markings? I've got this brass weight and I don't recognize the markings (canadian so this could be imperial or metric). As you can imagine googling “sqrt ED” or “ED](https://preview.redd.it/2inyr3kl48281.jpg?width=3024&format=pjpg&auto=webp&s=9fb5e4b27489637b5db566b5c68417f9646d42f3)
Anyone recognize these markings? I've got this brass weight and I don't recognize the markings (canadian so this could be imperial or metric). As you can imagine googling “sqrt ED” or “ED
![Figure represents a metre scale balancing on a knife edge at 20 cm mark. When a weight of 60 N is suspended from 10 cm mark. Calculate the weight of the ruler(in N). Figure represents a metre scale balancing on a knife edge at 20 cm mark. When a weight of 60 N is suspended from 10 cm mark. Calculate the weight of the ruler(in N).](https://dwes9vv9u0550.cloudfront.net/images/4594134/8c2480b0-9bc3-49e3-83a9-993d5f829d8f.jpg)