Cannot find the maker of this Swedish Silver Snuffbox

I have looked at all of the online sites listed in the beginning of this forum, and I cannot identify the makers mark. I have the year at 1917, the city is Jonkoping. Any help would be super, thank you.

 

On my phone and the images are a bit unclear, but looks to me more like 'T7' for 1921 - regardless, maker was Zander & Svenson (1913-40)...

~Cheryl

 

Thank you! Where did you find that makers mark? I was googling all afternoon! This little box is a bit of a family mystery...it belonged to my Great Aunt Sozie who was a buyer for a clothing boutique in Washington, D.C. She was quite the socialite and firecracker, I imagine it may have been left on her nightstand after a tryst. We really have no idea where she may have gotten it or who Loftquist was.