Two Silver 830/1000 Steel blade Butter Knives MEMA Sweden Mema Guld & Silver Ab Length-185mm., Width-23mm., Weight-119.7g., Excellent condition. "Y10" "X10" is a hallmark certifying that the product was tested in 1996, 1997. The letter "S" on a corrugated background in a pentagonal shield confirms that the product is made of silver of a grade not lower than the standard adopted in the country, which corresponds to 830 assay https://www.silvercollection.it/SVEZIADATA2BIS.jpg. Mema Guld & Silver AB was a well-known goldsmith's firm in Lidköping, founded in 1907 under the name Metallfabriken Solid AB. The company is known for its high-quality silverwork, often stamped "Mema" or "Mema/GAB". They manufactured cutlery, corpus work and silver objects, among other things.