Pretty pair of antique bar brooches, one signed & dated

So dainty, measuring just 1 inch and 2/3 of an inch, these two gold filled or plated pins would look good worn together or apart. The first is marked FP in a diamond, the mark for the early 20th C. jewelers Fritz & Pruefer. It is also marked "Pat Apr. 19 10" (the 10 is hard to see in the photo), which means a patent was approved in 1910 (Apr. might mean either Approved or April). The smaller one, which has the monogram BGA, is unmarked on the back - but has the same clasp and simplicity of the design as its partner, so I'd date it around the same time. They are both in very good shape.