Coat of arms of Elizabeth Bowes-Lyon

Blazon: The Royal Arms impaling quarterly 1 and 4 argent a lion rampant azure, armed and langued gules within a double tressure flory counter-flory of the second (for Lyon); 2 and 3 ermine three bows stringed palewise in fess proper (for Bowes).
SVG elements from     

Description from:  Brooke-Little, J.P., FSA (1978) [1950]       Boutell's Heraldry (Revised Edition ed.), London:  Frederick Warne LTD, pp. p. 220  ISBN:  0-7232-2096-4.
Ipankonin