Does anyone recognize this mark? On sterling cufflinks.

[ms.sellainy]

Before listing, I'm hoping to identify the maker's mark on this pair of sterling silver cufflinks. It looks kind of like a stylized elongated S or F, intersected by a heart or other shape??? Each is also marked "sterling". Help would be highly appreciated. Thank you.

[authentic*vintage]

cuflinkking would probably know. He has always gotten back with me in the past when I have sent him a message. It may take a few days though.

[ms.sellainy]

Thank you for the lead, AV. I made an email inquiry to cufflinkking with a link to this thread. I hope to hear from him soon.  Meanwhile, I'll keep looking. I enjoyed seeing the fantastic cufflinks on his ebay seller's page!  

[authentic*vintage]

He has a website as well, that can easily be found just by a Google search. There is a terminology page that I use, it explains the different types, such as toggle, etc. It's an invaluable reference.