Hi Maggie thanks for writing in.. there are Many plain arrow marks on jewelry. Some of the arrow marks are pointing left, some arrows are pointing right, some have feathers, some are plain, some point north and some south. Some arrow marks are thin and some arrows are thick.
Hutchinson & Huestis, Inc, 150 Chestnut St. Providence, R.I
for example, have a plain arrow pointing left.
More information or better still, a photo would really help.