It looks to be "Bamberger's" to me also. According to Wikipedia, Bamberg's was a department store chain primarily on the East Coast, later absorbed by Macy's.
It seems likely that your machine was "badged" for the Bamberger's Department Stores to be sold in their sewing machine department; as noted above the machine being made in Japan and also likely "badged" with other names.
It looks to be a left homing, high shank machine; unless it came with attachments it might be difficult to find some to work with the left homing. I have one left homing, high shank machine and am looking at this
Adjustable Combination Zipper Foot & Straight Stitch Foot- Fits Most H – Central Michigan Sewing Supplies Inc. (vintagesingerparts.com)
(I do not work for this company nor do I have any financial interest whatsoever in this company)