Griffin and letters inside a shield?

Resources
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IMG_20240208_150920010
IMG_20240208_1509200101920×2560 555 KB

IMG_20240208_145203055
IMG_20240208_1452030551920×2560 109 KB

IMG_20240208_145151113
IMG_20240208_1451511131920×2560 169 KB

Can anyone provide insight into where, when and/or who created this piece? Thanks in advance or all your help.

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Electroplate by Oxford Silversmiths Co of New York. Certainly in business between 1920 and 1950 and maybe later.

Phil