Silver Mark Help Please

Hi all, I'm trying to figure out who made these spoons (about 6"L). It doesn't help that the mark is backwards, took me a bit to figure that out Looks like a head with a heart above it, I'm not finding anything so hoping someone here will know.
any information appreciated
thanks for looking

this is what the stamp looks like, I have to flip the photo to read the word sterling

 

I think that's the International Sterling pattern called Chester, not 100% sure.

https://www.replacements.com/silver-international-silver-chester-sterling-1900-teaspoon/p/41254621



https://www.ebay.com/itm/385318423269?hash=item59b6c48ae5:g:0AwAAOSwDfFjq6lj&amdata=enc:AQAIAAAA8NbN/MGX9wI3gu2u0eSdacVSG+IzJ1NQ8jV8w/WofVF/pBqAAo96YhTELkWKF2z7docNs1c2EdWox+mHY4F88xSLap6YIm8DWwinord7h1Y5OaqvU++NuY8kcHz8DQUrwnlClVXr/Ucd77vOsKZF5I8/HYtpc4xzlWc7l1UhW8TmGhDAvkDGDPrtiAexD8cAaItvhgdsAI0UMER87vkm5MyeRnoZ5FL6tF1Gro39/lq/UzDFcXfmIUVlwB7Iw2LLqn45ozvxEpZCPH886NURUrkcvoQZXPUbIsnkixvnMujKEAiFxEaRQxkq3RJ7Z8ZTSA==|tkp:Bk9SR7bF763pYg

 

Wonderful, thank-you SIS, looks right for the Chester pattern. I guess the maker mark was for one of the silver companies that joined together to become International Silver if I'm understanding the history of them