I was looking on the ISMACS needle list, and it looks like most of the Mason machines used the 20x1, or various sizes of Boye needles. I couldn't find this particular badge name, New Glenwood, but did find a Glenwood by Mason that takes the 20x1 needle. We'll see when it arrives. Looks like it may have one needle in it, so I hope I can see if that one works. I have a few sizes of Boye needles, including some showing in the listing for Mason machines.
She's a good candidate for a MUTT treadle, wouldn't you say?