I've recently acquired this postcard:


I'm attempting to identify the printer (or publisher?) logo in the lower left corner. Here's a closer image:

I've found one other example of this card online and the owner indicates it was postmarked in 1915. I've been able to locate other examples of cards with this same logo, all seemingly from the early 1900s. I suspect it's a printer logo (rather than publisher) because some cards with the same logo list a publisher, but not all of them.
Thanks ahead of time for the help. :)