We have 2 Anchor stick pins nos.  They are from a jewelry mill which had gone out of business in the 1980's.  There are small 1/2" anchors on the top of the pins.  The bottom closure (oblong open end pin end) is not with the item - these can be purchased separately.  They measure about 1 7/8" in l x about 3/8" across the anchor.

2 Anchor stick pins nos