Question: Spry was a brand of vegetable shortening produced by a British manufacturing company founded in what year?

Context articles: Avolites
The Airscrew Company
Aunt Jenny
Lever Brothers
Spry Fox
James Thomas Engineering
Spry Vegetable Shortening
Crisco
Alvis Car and Engineering Company
100-ton gun

Avolites Ltd is a British manufacturing company based in Park Royal, London.
 Avolites manufactures lighting control consoles and stage dimming equipment for use in the entertainments lighting industry.
 In 2011 the company expanded into the media server sector of the entertainments technology market by acquiring software developed by Immersive Ltd, supplying control systems used in the 2012 Olympics opening ceremony, and the 2014 Winter Sochi Olympics ceremonies.
The Airscrew Company Ltd (incorporating the Jicwood company) was a British manufacturing company based in Surrey manufacturing propellers.
Aunt Jenny was an advertising character created for Spry Vegetable Shortening.
 Primarily portrayed by Edith Spencer, Aunt Jenny was best known as host and narrator of the long-lived radio show, "Aunt Jenny’s Real Life Stories" (January 18, 1937 – November 16, 1956), but she was also seen promoting the product in drawings, photographs and cookbooks.
Lever Brothers was a British manufacturing company founded in 1885 by brothers William Hesketh Lever (1851–1925) and James Darcy Lever (1854–1916).
 They invested in and successfully promoted a new soap-making process invented by chemist William Hough Watson.
 In 1930, Lever Brothers merged with Margarine Unie to form Unilever.
Spry Fox is a video game producing company headquartered in Seattle, United States, that was founded in 2010 by David Edery and Daniel Cook.
 The company produced the games Triple Town, a freemium strategy puzzle game with city-building game elements for social networks and mobile devices; Steambirds, a strategy flying game for mobile devices; Road Not Taken, a roguelike puzzle game; and co-created Realm of the Mad God with Wild Shadow Studios.
 When Wild Shadow Studios was acquired by Kabam in June 2012, Spry Fox sold its stake in the game to Kabam as part of the deal.
James Thomas Engineering (JTE) is a British manufacturing company based in Worcester, Worcestershire.
 Since 1990, the company also has offices in Knoxville, Tennessee.
 The company manufactures stage lighting equipment and stage rigging equipment, such as trusses, PAR lamp enclosures and more recently LED stage lighting equipment.
Spry was a brand of vegetable shortening produced by Lever Brothers starting in 1936.
 It was a competitor for Procter & Gamble's Crisco, and through aggressive marketing through its mascot Aunt Jenny had reached 75 percent of Crisco's market share.
 The marketing efforts were phased out in the 1950s, but Aunt Jenny and her quotes like "With Spry, we can afford to have cake oftener!"
 have been reprinted.
 Though the product is discontinued in most countries, there are anecdotal reports of its being used through the 1970s.
Crisco is a brand of shortening produced by The J.M. Smucker Company popular in the United States.
 Introduced in June 1911 by Procter & Gamble, it was the first shortening to be made entirely of vegetable oil.
 Additional products marketed by Smucker under the Crisco brand include a cooking spray, various olive oils, and other cooking oils, including canola, corn, peanut, olive, sunflower, vegetable and blended oils.
Alvis Car and Engineering Company Ltd was a British manufacturing company in Coventry from 1919 to 1967.
 In addition to automobiles designed for the civilian market, the company also produced racing cars, aircraft engines, armoured cars and other armoured fighting vehicles.
The 100-ton gun (also known as the Armstrong 100-ton gun) was a 17.72 in rifled muzzle-loading (RML) gun made by Elswick Ordnance Company, the armaments division of the British manufacturing company Armstrong Whitworth, owned by William Armstrong.
 The 15 guns Armstrong made armed two Italian battleships and, to counter these, British fortifications at Malta and Gibraltar.